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

Johansen JP. Neuroscience: anxiety is the sum of its parts. Nature 2013: 496: 174–175.

A journal article with 2 authors

Van Tuyl R, Pereltsvaig A. Comment on ‘Phonemic diversity supports a serial founder effect model of language expansion from Africa’. Science 2012: 335: 657; author reply 657.

A journal article with 3 authors

Šubelj L, Fiala D, Bajec M. Network-based statistical comparison of citation topology of bibliographic databases. Sci Rep 2014: 4: 6496.

A journal article with 100 or more authors

Liakath-Ali K, Mills EW, Sequeira I, Lichtenberger BM, Pisco AO, Sipilä KH, Mishra A, Yoshikawa H, Wu CC-C, Ly T, Lamond AI, Adham IM, Green R, Watt FM. An evolutionarily conserved ribosome-rescue pathway maintains epidermal homeostasis. Nature 2018: 556: 376–380.

Books and book chapters

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

An authored book

Upreti SR. Process Modeling and Simulation for Chemical Engineers. Chichester, UK: John Wiley & Sons, Ltd 2017

An edited book

Kolman E. Knowledge-Based Neurocomputing: A Fuzzy Logic Approach. Berlin, Heidelberg: Springer 2009

A chapter in an edited book

Geeraerts G, Heussner A, Praveen M, Raskin J-F. ω-Petri Nets. In: Colom J-M, Desel J, editors. Application and Theory of Petri Nets and Concurrency: 34th International Conference, PETRI NETS 2013, Milan, Italy, June 24-28, 2013. Proceedings. Berlin, Heidelberg: Springer 2013: 49–69.

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

Andrew E. Neurogenesis Could Help Adult Brains Adapt To Changing Environments. IFLScience. 2015.

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. Examination of Disbursing Officer’s Account, U.S. Army Quartermaster School, Fort Lee, Virginia. Washington, DC: U.S. Government Printing Office 1976

Theses and dissertations

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

Doctoral dissertation

Eng R. Exploring Investors’ Decision Making Processes During the 2008 Financial Crisis Using Epstein’s Cognitive Experiential Self-Theory: A Multiple-case Study. 2014.

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

Gorman J. Sciencetake: An Effort to Put a Blue, Whirling Vortex of Fire to Good Use. New York Times. 2016: : D2.

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 (2,4).
This sentence cites four references (2,6–8).

About the journal

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