MLA

Plowden, David (1932). Roof Detail, Round Barn Owned by Mrs. William Benson. On Route U.S. 20, West of Angola, Steuben County, Indiana (500-1470). Box 145. 2000 May. https://collections.library.yale.edu/catalog/2043076.

APA, 6th edition

Plowden, David (1932). (["Box 145"])(2000 May)[Roof Detail, Round Barn Owned by Mrs. William Benson. On Route U.S. 20, West of Angola, Steuben County, Indiana (500-1470)]. https://collections.library.yale.edu/catalog/2043076.