MLA

Plowden, David (1932). Cow Barn Entrance, David King's Farm. On Old Philadelphia Pike, Kinzers, Lancaster County, Pennsylvania (702-435). Box 172. 2002 July. https://collections.library.yale.edu/catalog/2043903.

APA, 6th edition

Plowden, David (1932). (["Box 172"])(2002 July)[Cow Barn Entrance, David King's Farm. On Old Philadelphia Pike, Kinzers, Lancaster County, Pennsylvania (702-435)]. https://collections.library.yale.edu/catalog/2043903.