MLA

Plowden, David (1932). "Scooper" in Hold of Steamer William A. McGonagle, Kinsman Lines. Buffalo, New York (785-1062). Box 60. 1985 July. https://collections.library.yale.edu/catalog/2041403.

APA, 6th edition

Plowden, David (1932). (["Box 60"])(1985 July)["Scooper" in Hold of Steamer William A. McGonagle, Kinsman Lines. Buffalo, New York (785-1062)]. https://collections.library.yale.edu/catalog/2041403.