MLA

Geographical Surveys West of the 100th Meridian (U.S.). Topographical map of Lake Tahoe Region : Sierra Nevada, California and Nevada / U.S. Geographical Surveys West of the 100th Meridian.. BRBL_00611. 1881. https://collections.library.yale.edu/catalog/15818787.

APA, 6th edition

Geographical Surveys West of the 100th Meridian (U.S.). (["BRBL_00611"])(1881)[Topographical map of Lake Tahoe Region : Sierra Nevada, California and Nevada / U.S. Geographical Surveys West of the 100th Meridian.]. https://collections.library.yale.edu/catalog/15818787.