This document discusses why citations are important and how to properly cite sources. It notes that citations give credit, show how ideas are built upon previous work, demonstrate research was done, and help avoid plagiarism. Citations have two parts - in-text citations that identify sources as you discuss them, and a reference list with full details. The document provides an example paper showing in-text citations and a reference list, and gives steps for building citations using a style guide. It cautions to always check citations generated by software against style guides.