MLA

McClintock, Walter, 1870-1949. G760. Cut Bank Canyon Camp. Evening After Blizzard. Golden Sunset. My Horse, Head Turned.. Box 108, folder 5025. 1906 Fall. https://collections.library.yale.edu/catalog/10450786.

APA, 6th edition

McClintock, Walter, 1870-1949. (["Box 108, folder 5025"])(1906 Fall)[G760. Cut Bank Canyon Camp. Evening After Blizzard. Golden Sunset. My Horse, Head Turned.]. https://collections.library.yale.edu/catalog/10450786.