MLA

Plowden, David (1932). Newburgh-Beacon Ferry, Ferryboat Beacon Arriving in Newburgh. Newburgh, New York (NBF-363-21). Box 69. 1963 April. https://collections.library.yale.edu/catalog/2041619.

APA, 6th edition

Plowden, David (1932). (["Box 69"])(1963 April)[Newburgh-Beacon Ferry, Ferryboat Beacon Arriving in Newburgh. Newburgh, New York (NBF-363-21)]. https://collections.library.yale.edu/catalog/2041619.