Cite

FS-63. Riders Driving Horses Across a River.

MLA

McClintock, Walter, 1870-1949. FS-63. Riders Driving Horses Across a River.. Box 147, folder 7816. undated. https://collections.library.yale.edu/catalog/10453383.

APA, 6th edition

McClintock, Walter, 1870-1949. (["Box 147, folder 7816"])(undated)[FS-63. Riders Driving Horses Across a River.]. https://collections.library.yale.edu/catalog/10453383.