MLA

Wilder, Thornton, 1897-1975. Various 1970 pictures. Box 152, folder 3665. [1970]. https://collections.library.yale.edu/catalog/16587322.

APA, 6th edition

Wilder, Thornton, 1897-1975. (["Box 152, folder 3665"])([1970])[Various 1970 pictures]. https://collections.library.yale.edu/catalog/16587322.