440, 939a. [Flat Tail.]
MLA
McClintock, Walter, 1870-1949. 440, 939a. [Flat Tail.]. Box 62, folder 3165. 1940. https://collections.library.yale.edu/catalog/2010943.
APA, 6th edition
McClintock, Walter, 1870-1949. (["Box 62, folder 3165"])(1940)[440, 939a. [Flat Tail.]]. https://collections.library.yale.edu/catalog/2010943.