<human>:  How do I cite sources in APA format?
<bot>: In APA format, sources should be cited in two ways: in-text citations and a reference list at the end of the paper. In-text citations consist of the author's last name and the year of publication. For example: (Smith, 2020). The reference list should include all of the sources you used and appear in alphabetical order by author. For each source, include the author's name, date of publication, title of work, and other identifying information. The style and format of the reference may vary depending on the source. For example, an article might look like this: Smith, J. (2020). The Impact of Citation on Writing. Journal of Citation Studies, 32(2), 57-67.