F885a. Avalanche Basin. Head of Avalanche Basin.
MLA
McClintock, Walter, 1870-1949. F885a. Avalanche Basin. Head of Avalanche Basin.. Box 140, folder 6947. 1908. https://collections.library.yale.edu/catalog/10452636.
APA, 6th edition
McClintock, Walter, 1870-1949. (["Box 140, folder 6947"])(1908)[F885a. Avalanche Basin. Head of Avalanche Basin.]. https://collections.library.yale.edu/catalog/10452636.