This document discusses reference management and referencing. It defines referencing as giving credit to sources used in a paper. There are two parts to referencing: in-text citations and a bibliography. Reasons for referencing include acknowledging sources and allowing readers to trace sources. The two main styles are Harvard and Vancouver. Harvard uses author-date citations and an alphabetical bibliography. Vancouver uses numbered citations and a numbered bibliography in citation order. Reference management can be done manually, online, or through software like EndNote, Zotero, and Mendeley. The document demonstrates referencing a source using Harvard and Vancouver styles and discusses using the Zotero software.