MLA

of New Mexico, United States. Surveyor General. Sketch of Public Surveys in New Mexico / Compiled from Maps on File in This Office. s.n.], 1860. https://collections.library.yale.edu/catalog/15818573.

APA, 6th edition

of New Mexico, U. S. S. G. (1860). Sketch of public surveys in New Mexico / compiled from maps on file in this office. [Maps]. s.n.], https://collections.library.yale.edu/catalog/15818573.