This document provides an overview of APA citation style guidelines. It discusses the key elements of APA style including in-text citations, reference lists, author names, publication dates, titles, and sources without page numbers. Examples are provided throughout to illustrate different citation formats for various source types, such as books, journal articles, newspaper articles, interviews and more. The purpose of APA style is to standardize scientific writing and citations in order to give credit to authors and allow readers to find the sources easily.