Cite

G920b. Big Moon and Horse.

MLA

McClintock, Walter, 1870-1949. G920b. Big Moon and Horse.. Box 115, folder 5370. 1909 Summer. https://collections.library.yale.edu/catalog/10451170.

APA, 6th edition

McClintock, Walter, 1870-1949. (["Box 115, folder 5370"])(1909 Summer)[G920b. Big Moon and Horse.]. https://collections.library.yale.edu/catalog/10451170.