Cite

State of Colorado / Department of the Interior, General Land Office ; compiled and drawn by A.F. Dinsmore ; traced and lettered by Wm. Naylor.

MLA

Dinsmore, A. F. State of Colorado / Department of the Interior, General Land Office ; Compiled and Drawn by A.F. Dinsmore ; Traced and Lettered by Wm. Naylor. General Land Office?], 1892. https://collections.library.yale.edu/catalog/15818418.

APA, 6th edition

Dinsmore, A. F. (1892). State of Colorado / Department of the Interior, General Land Office ; compiled and drawn by A.F. Dinsmore ; traced and lettered by Wm. Naylor. [Maps]. General Land Office?], https://collections.library.yale.edu/catalog/15818418.