MLA

Plowden, David (1932). Dave Scheer (left) and Brad Kresse (right), Painters, Clarence Co-op. Clarence, Iowa (1087-260). Box 33. 1987 October. https://collections.library.yale.edu/catalog/2040699.

APA, 6th edition

Plowden, David (1932). (["Box 33"])(1987 October)[Dave Scheer (left) and Brad Kresse (right), Painters, Clarence Co-op. Clarence, Iowa (1087-260)]. https://collections.library.yale.edu/catalog/2040699.