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:

PaperpileThe citation style is built in and you can choose it in Settings > Citation Style or Paperpile > Citation Style in Google Docs.
EndNoteFind the style here: output styles overview
Mendeley, Zotero, Papers, and othersThe style is either built in or you can download a CSL file that is supported by most references management programs.
BibTeXBibTeX 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
Paszkowski J. Epigenetics: The karma of oil palms. Nature 2015: 525: 466–467.
A journal article with 2 authors
Wood BJ, Halliday AN. Cooling of the Earth and core formation after the giant impact. Nature 2005: 437: 1345–1348.
A journal article with 3 authors
Meschke M, Guichard W, Pekola JP. Single-mode heat conduction by photons. Nature 2006: 444: 187–190.
A journal article with 100 or more authors
Hanan BB, Blichert-Toft J, Pyle DG, Christie DM. Contrasting origins of the upper mantle revealed by hafnium and lead isotopes from the Southeast Indian Ridge. Nature 2004: 432: 91–94.

Books and book chapters

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

An authored book
Relethford JH. 50 Great Myths of Human Evolution. Hoboken, NJ: John Wiley & Sons, Inc. 2017
An edited book
Robinson S, Sleight S, eds. Children, Childhood and Youth in the British World. London: Palgrave Macmillan UK 2016
A chapter in an edited book
Basanow J, Neis P, Neubauer S, Schilling A, Zipf A. Towards 3D Spatial Data Infrastructures (3D-SDI) based on open standards — experiences, results and future issues. In: Oosterom P van, Zlatanova S, Penninga F, Fendel EM, editors. Advances in 3D Geoinformation Systems. Berlin, Heidelberg: Springer 2008: 65–86.

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. Evolutionary Evidence Shows It’s Time to Revise How We Classify Life on Earth. IFLScience. 2014. (accessed 30 Oct2018).


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. Aviation Security: Flight and Cabin Crew Member Security Training Strengthened, but Better Planning and Internal Controls Needed. Washington, DC: U.S. Government Printing Office 2005

Theses and dissertations

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

Doctoral dissertation
Landon SG. The development of a transitional shelter program for homeless women: A grant proposal. 2015.

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
Billard M. Lessons From a Master Shopper. New York Times. 2013: : E14.

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 (5–8).

About the journal

Full journal titlePeriodontology 2000
AbbreviationPeriodontol. 2000
ISSN (print)0906-6713
ISSN (online)1600-0757

Other styles