MLA

Russell, Andrew J., 1829-1902. Commissioners at Fort Laramie. box 2. circa 1864-1869. https://collections.library.yale.edu/catalog/33350146.

APA, 6th edition

Russell, Andrew J., 1829-1902. (["box 2"])(circa 1864-1869)[Commissioners at Fort Laramie]. https://collections.library.yale.edu/catalog/33350146.