Maps are available in a variety of formats and materials: individual paper sheet maps; plates and illustrations from atlases/books/journals; static digital images from web pages; or user-generated through online mapping services or GIS software. As with all scholarly work, the use of maps should be cited. Unfortunately, many citation style manuals are not clear about the specifics of citing maps - in these situations the following guides are recommended for the creation of generic citations which can be edited as required.