Zotero — free reference manager; excellent for collecting sources, inserting citations, and automatically creating bibliographies

Mendeley Reference Manager — manages PDFs and references and integrates with Microsoft Word. Helps users store and organize research articles and PDFs, manage references, and automatically insert citations and bibliographies into academic documents.

EndNote — powerful professional reference-management software, widely used by universities and researchers. A comprehensive reference-management program used to organize large collections of references, insert citations, and generate bibliographies in different referencing styles.

Microsoft Word References — built-in citation and bibliography tools under References → Insert Citation → Manage Sources. A built-in Word feature that allows users to add sources, insert in-text citations, manage references, and automatically generate a bibliography/reference list.

Google Scholar — useful for finding academic literature and quickly generating citations in APA, MLA, Chicago, etc.An academic search engine for finding journal articles, theses, books, conference papers, and other scholarly materials. Its Cite feature can generate references in several common styles.

RefWorks – A web-based reference manager that allows researchers to save, organize, share and cite academic sources and automatically create bibliographies.

Cite This For Me – An online citation generator that helps users quickly create references for books, websites, journals and other sources in styles such as APA, Harvard and MLA.