SF-78. Flower Meadow.
MLA
McClintock, Walter, 1870-1949. SF-78. Flower Meadow.. Box 145, folder 7518. undated. https://collections.library.yale.edu/catalog/10453663.
APA, 6th edition
McClintock, Walter, 1870-1949. (["Box 145, folder 7518"])(undated)[SF-78. Flower Meadow.]. https://collections.library.yale.edu/catalog/10453663.