Cite

Map of the United States / prepared in the Office of the Chief of Engineers, U.S.A., by W.W. Winship, under the direction of Brig. Gen. John Newton, Chief of Eng., Bvt. Major General, U.S.A.

MLA

Winship, W. W. Map of the United States / Prepared in the Office of the Chief of Engineers, U.S.A., by W.W. Winship, under the Direction of Brig. Gen. John Newton, Chief of Eng., Bvt. Major General, U.S.A. The Office, 1889. https://collections.library.yale.edu/catalog/15603688.

APA, 6th edition

Winship, W. W. (1889). Map of the United States / prepared in the Office of the Chief of Engineers, U.S.A., by W.W. Winship, under the direction of Brig. Gen. John Newton, Chief of Eng., Bvt. Major General, U.S.A. [Maps]. The Office, https://collections.library.yale.edu/catalog/15603688.