Cite

SF-3. Owl in Hemlock Tree. Photographed by Norman McClintock.

MLA

McClintock, Walter, 1870-1949. SF-3. Owl in Hemlock Tree. Photographed by Norman McClintock.. Box 145, folder 7445. undated. https://collections.library.yale.edu/catalog/10453589.

APA, 6th edition

McClintock, Walter, 1870-1949. (["Box 145, folder 7445"])(undated)[SF-3. Owl in Hemlock Tree. Photographed by Norman McClintock.]. https://collections.library.yale.edu/catalog/10453589.