This document discusses citing sources and bibliographies. It defines a bibliography as an alphabetical list of sources used by a writer. It emphasizes the importance of citing sources, such as to give credit to authors and prevent plagiarism. The document outlines three main citation styles - APA, MLA, and Chicago Manual of Style. It provides examples of how to cite different source types, such as books, journals, websites, and online journals, according to the Chicago Manual of Style 17th edition guidelines.