A new map of Maine
MLA
A New Map of Maine. 1850. https://collections.library.yale.edu/catalog/2042187.
APA, 6th edition
A new map of Maine. (1850). [Atlases, Illustrations, Lithographs, Maps, Maps in books, Planographic prints, Prints (Visual works)]. https://collections.library.yale.edu/catalog/2042187.