This document provides guidance on citing and referencing sources in APA style. It discusses the purpose and importance of citations, which is to allow others to find sources and give credit to original ideas. It then explains how to format in-text citations, including citing authors with different numbers of works and secondary sources. Lastly, it reviews how to format a reference list, including entries for different source types like books, journal articles, newspapers, and webpages. The overall document serves as a brief style guide for citing sources in APA format.