How to format your references using the Periodontology 2000 citation style

This is a short guide how to format citations and the bibliography in a manuscript for Periodontology 2000. For a complete guide how to prepare your manuscript refer to the journal's instructions to authors.

Using reference management software

Typically you don't format your citations and bibliography by hand. The easiest way is to use a reference manager:

Paperpile	The citation style is built in and you can choose it in Settings > Citation Style or Paperpile > Citation Style in Google Docs.
EndNote	Find the style here: output styles overview
Mendeley, Zotero, Papers, and others	The style is either built in or you can download a CSL file that is supported by most references management programs.
BibTeX	BibTeX syles are usually part of a LaTeX template. Check the instructions to authors if the publisher offers a LaTeX template for this journal.

Journal articles

Those examples are references to articles in scholarly journals and how they are supposed to appear in your bibliography.

Not all journals organize their published articles in volumes and issues, so these fields are optional. Some electronic journals do not provide a page range, but instead list an article identifier. In a case like this it's safe to use the article identifier instead of the page range.

A journal article with 1 author

Ide S. Striations, duration, migration and tidal response in deep tremor. Nature 2010: 466: 356–359.

A journal article with 2 authors

Elderfield H, Rickaby RE. Oceanic Cd/P ratio and nutrient utilization in the glacial Southern Ocean. Nature 2000: 405: 305–310.

A journal article with 3 authors

Kobayashi T, Saito T, Ohtani H. Real-time spectroscopy of transition states in bacteriorhodopsin during retinal isomerization. Nature 2001: 414: 531–534.

A journal article with 100 or more authors

Boyer V, Marino AM, Pooser RC, Lett PD. Entangled images from four-wave mixing. Science 2008: 321: 544–547.

Books and book chapters

Here are examples of references for authored and edited books as well as book chapters.

An authored book

O’Connor K, Aardema F. Clinician’s Handbook for Obsessive-Compulsive Disorder. Chichester, UK: John Wiley & Sons, Ltd 2011

An edited book

Shumaker R, ed. Virtual Augmented and Mixed Reality. Designing and Developing Augmented and Virtual Environments: 5th International Conference, VAMR 2013, Held as Part of HCI International 2013, Las Vegas, NV, USA, July 21-26, 2013, Proceedings, Part I. Berlin, Heidelberg: Springer 2013

A chapter in an edited book

Cai M-G, Qi N, Xie J. Research and Performance Analysis of Constant-Envelope Multiplex for BD B2 Signals. In: Sun J, Liu J, Fan S, Wang F, editors. China Satellite Navigation Conference (CSNC) 2016 Proceedings: Volume II. Singapore: Springer 2016: 57–67.

Web sites

Sometimes references to web sites should appear directly in the text rather than in the bibliography. Refer to the Instructions to authors for Periodontology 2000.

Blog post

Hamilton K. This Is What Our Cities Would Look Like Without Light Pollution. IFLScience. 2014.https://www.iflscience.com/space/what-if-our-cities-were-lit-billions-stars/ (accessed 30 Oct2018).

Reports

This example shows the general structure used for government reports, technical reports, and scientific reports. If you can't locate the report number then it might be better to cite the report as a book. For reports it is usually not individual people that are credited as authors, but a governmental department or agency like "U. S. Food and Drug Administration" or "National Cancer Institute".

Government report

Government Accountability Office. Digital Television Transition: Information on the Implementation of the Converter Box Subsidy Program and Consumer Participation in the Program. Washington, DC: U.S. Government Printing Office 2008

Theses and dissertations

Theses including Ph.D. dissertations, Master's theses or Bachelor theses follow the basic format outlined below.

Doctoral dissertation

Rossi G. Anesthesiology, geriatric surgery, and the risk of post-operative cognitive dysfunction. 2010.

News paper articles

Unlike scholarly journals, news papers do not usually have a volume and issue number. Instead, the full date and page number is required for a correct reference.

New York Times article

Wagner J. Dodgers’ Turner Delivers Decisive Final Blow in a Battle of Bullpens. New York Times. 2017: : D4.

In-text citations

References should be cited in the text by sequential numbers in parentheses:

This sentence cites one reference (2).
This sentence cites two references (3,4).
This sentence cites four references (4,5,7,8).

About the journal

Full journal title	Periodontology 2000
Abbreviation	Periodontol. 2000
ISSN (print)	0906-6713
ISSN (online)	1600-0757
Scope	Periodontics