F6191. Distant Rockies. "Snow Gone."
MLA
McClintock, Walter, 1870-1949. F6191. Distant Rockies. "Snow Gone.". Box 138, folder 6477. 1906 Spring. https://collections.library.yale.edu/catalog/10452163.
APA, 6th edition
McClintock, Walter, 1870-1949. (["Box 138, folder 6477"])(1906 Spring)[F6191. Distant Rockies. "Snow Gone."]. https://collections.library.yale.edu/catalog/10452163.