MLA

Butler, Benjamin F. (Benjamin Franklin), 1795-1858. Map of the state of California : compiled from the most recent surveys and explorations, and comprising an accurate description of the county boundaries, according to an act passed by the Legislature, April 25th, 1851, also a complete delineation of the g. BRBL_00601. 1851. https://collections.library.yale.edu/catalog/15818634.

APA, 6th edition

Butler, Benjamin F. (Benjamin Franklin), 1795-1858. (["BRBL_00601"])(1851)[Map of the state of California : compiled from the most recent surveys and explorations, and comprising an accurate description of the county boundaries, according to an act passed by the Legislature, April 25th, 1851, also a complete delineation of the g]. https://collections.library.yale.edu/catalog/15818634.