Cite

F5x7-77. Cutbank Valley. Lake and Divide. Looking West.

MLA

McClintock, Walter, 1870-1949. F5x7-77. Cutbank Valley. Lake and Divide. Looking West.. Box 148, folder 7906. undated. https://collections.library.yale.edu/catalog/10453567.

APA, 6th edition

McClintock, Walter, 1870-1949. (["Box 148, folder 7906"])(undated)[F5x7-77. Cutbank Valley. Lake and Divide. Looking West.]. https://collections.library.yale.edu/catalog/10453567.