Cite

Reconnoissance map of the United States showing the distribution of the geologic system so far as known / compiled from data in possession of the U.S. Geological Survey by W.J. McGee, 1893.

MLA

McGee, W. J., 1853-1912. Reconnoissance map of the United States showing the distribution of the geologic system so far as known / compiled from data in possession of the U.S. Geological Survey by W.J. McGee, 1893.. BRBL_00408. [1893?]. https://collections.library.yale.edu/catalog/15603697.

APA, 6th edition

McGee, W. J., 1853-1912. (["BRBL_00408"])([1893?])[Reconnoissance map of the United States showing the distribution of the geologic system so far as known / compiled from data in possession of the U.S. Geological Survey by W.J. McGee, 1893.]. https://collections.library.yale.edu/catalog/15603697.