The list of references (also known as the bibliography) contains all the sources used in the text. It is not necessary to categorise sources, e.g. monographs, journals and online sources.

The list of references lists the sources alphabetically by the author's surname. If there are several texts by the same author or team of authors, they are sorted chronologically. If there are several publications by the same author or team of authors in the same year, the individual sources are distinguished by the addition of lower-case letters in the alphabetical order of the title, e.g. Churchill, G. A. (1979a); Churchill, G. A. (1979b). This will be retained when citing in the text.

An overview of how to use APA citation style in the bibliography can be found here.

In German-language papers, the abbreviations "p./pp." for page(s) and "Ed./Eds." for editor are replaced by the German abbreviations "S." for page(s) and "Hrsg" for editor.