F6882. River Looking South. Twin Peaks. Leaning Fir.
MLA
McClintock, Walter, 1870-1949. F6882. River Looking South. Twin Peaks. Leaning Fir.. Box 138, folder 6588. 1906 Fall. https://collections.library.yale.edu/catalog/10452274.
APA, 6th edition
McClintock, Walter, 1870-1949. (["Box 138, folder 6588"])(1906 Fall)[F6882. River Looking South. Twin Peaks. Leaning Fir.]. https://collections.library.yale.edu/catalog/10452274.