F6854. Hunters With Pack Horse on the Trail.
MLA
McClintock, Walter, 1870-1949. F6854. Hunters With Pack Horse on the Trail.. Box 138, folder 6560. 1906 Fall. https://collections.library.yale.edu/catalog/10452246.
APA, 6th edition
McClintock, Walter, 1870-1949. (["Box 138, folder 6560"])(1906 Fall)[F6854. Hunters With Pack Horse on the Trail.]. https://collections.library.yale.edu/catalog/10452246.