550, 611c. [Bull Elk.] Photography by Norman McClintock.
MLA
McClintock, Walter, 1870-1949. 550, 611c. [Bull Elk.] Photography by Norman McClintock.. Box 63, folder 3284. 1947. https://collections.library.yale.edu/catalog/2008842.
APA, 6th edition
McClintock, Walter, 1870-1949. (["Box 63, folder 3284"])(1947)[550, 611c. [Bull Elk.] Photography by Norman McClintock.]. https://collections.library.yale.edu/catalog/2008842.