Cite

719a. Puppies Playing.

MLA

McClintock, Walter, 1870-1949. 719a. Puppies Playing.. Box 65, folder 3472. 1935. https://collections.library.yale.edu/catalog/2009294.

APA, 6th edition

McClintock, Walter, 1870-1949. (["Box 65, folder 3472"])(1935)[719a. Puppies Playing.]. https://collections.library.yale.edu/catalog/2009294.