In the bibliography (sometimes also called the list of sources), all sources used in the main text are listed. Dividing sources into different types, e.g., monographs, journals, and online sources, is not desired.

The bibliography lists sources in alphabetical order by the authors’ last names. If there are multiple texts by the same author or author team, they are sorted chronologically. If an author or author team has multiple publications in the same year, the individual sources are distinguished by adding lowercase letters in alphabetical order of the titles, e.g., Churchill, G. A. (1979a); Churchill, G. A. (1979b). This labeling is also retained in in-text citations.

An overview of using APA citation style in the bibliography can be found here.

For works written in German, the abbreviations “p./pp.” for page(s) and “Ed./Eds.” for editor are replaced with the German terms “S.” for Seite(n) and “Hrsg.” for Herausgeber:innen.