After using a map to research, it is important to cite the information you learned from the map. Yet maps aren't as simple to cite as a book or a website, the follow resources provide different ways to cite maps and atlases.
Maps produced by government agencies have different copyright policies than maps produced by private companies. The following links explain the different ways you can use government-produced maps without violating copyright laws.
Sometimes the use of maps can get a bit tricky and you may need to talk to an expert about copyright issues in regards to private or government maps, please direct your questions to the Copyright Office at U of M located in room 4190 of the Shapiro Library.