MLA

Russell, Andrew J., 1829-1902. Valley of Little Laramie from Mountains. box 1. circa 1864-1869. https://collections.library.yale.edu/catalog/33350090.

APA, 6th edition

Russell, Andrew J., 1829-1902. (["box 1"])(circa 1864-1869)[Valley of Little Laramie from Mountains]. https://collections.library.yale.edu/catalog/33350090.