This document provides an overview of different bibliographic style standards used in academic writing. It discusses the Chicago, MLA, APA, AMA, ACS, and Turabian styles, describing their origins, typical uses, and sample citations. Key differences between the styles are noted, such as their emphasis on author names versus publication dates. The document also reviews general requirements for reference lists in APA style, such as formatting, handling author names, and citing different source types like books, articles, and websites.