When you cite a source, you show how your voice enters into an intellectual conversation and you demonstrate your link to the community within which you work. Working with sources can inspire your own ideas and enrich them, and your citation of these sources is the visible trace of that debt...
These online citation style guides provide overviews, for more in-depth coverage and for more obscure types of resources (images, Bible verses) use the actual style guides found in the Library's collection (see below).