MLA

Clayton, J. E. (Joshua Elliot). Map of Esmeralda and Mono : [Nev. and Calif.] / by J.E. Clayton, mining engineer. Esmeralda Mining District [Calif. and Nev.].. BRBL_00604. [1861?]. https://collections.library.yale.edu/catalog/15818681.

APA, 6th edition

Clayton, J. E. (Joshua Elliot). (["BRBL_00604"])([1861?])[Map of Esmeralda and Mono : [Nev. and Calif.] / by J.E. Clayton, mining engineer. Esmeralda Mining District [Calif. and Nev.].]. https://collections.library.yale.edu/catalog/15818681.