Cite

F522a. Elk Horn and Myself [Walter McClintock] in Camp.

MLA

McClintock, Walter, 1870-1949. F522a. Elk Horn and Myself [Walter McClintock] in Camp.. Box 136, folder 6161. 1905 Summer. https://collections.library.yale.edu/catalog/10451837.

APA, 6th edition

McClintock, Walter, 1870-1949. (["Box 136, folder 6161"])(1905 Summer)[F522a. Elk Horn and Myself [Walter McClintock] in Camp.]. https://collections.library.yale.edu/catalog/10451837.