This document provides an overview of APA citation style, including the differences between citations and references, why we cite sources, and how to format references correctly. It explains that references appear in the bibliography while citations are used in-text, and discusses quoting, paraphrasing, and summarizing sources. Examples are provided for various source types, such as journal articles, legal sources, and sources without authors. Guidance is offered on citing multiple authors, indirect sources, and no author sources.