MLA

Mott, John R. (John Raleigh), 1865-1955. Pinchot, Gifford. 71, folder 1289. 1908-1931. https://collections.library.yale.edu/catalog/33463268.

APA, 6th edition

Mott, John R. (John Raleigh), 1865-1955. (["71, folder 1289"])(1908-1931)[Pinchot, Gifford]. https://collections.library.yale.edu/catalog/33463268.