Many library databases provide citations for sources (i.e., check for a "cite" or "citation" link or listing). But, their citation accuracy isn't always 100% correct. It’s helpful to know what source information is needed (e.g., author, title, publication date, etc.), so you can identify when a citation looks right. KnightCite is a fairly accurate citation creator service that will take source data you provide and format MLA, APA, and Chicago citations. Review computer-generated citations with human-generated citation guides as well to be safe.