MLA

Plowden, David (1932). Barnyard, Speich Brothers' Orford View Farm. Ofordville, Rock County, Wisonsin (300-181 or 300-187). Box 148. 2000 March. https://collections.library.yale.edu/catalog/2043478.

APA, 6th edition

Plowden, David (1932). (["Box 148"])(2000 March)[Barnyard, Speich Brothers' Orford View Farm. Ofordville, Rock County, Wisonsin (300-181 or 300-187)]. https://collections.library.yale.edu/catalog/2043478.