MLA

Plowden, David (1932). Douglas Monk, 3rd Assistant Engineer, Steamer Irvin L. Clymer , USS Great Lakes Fleet (890-101). Box 67. 1990 August. https://collections.library.yale.edu/catalog/2041531.

APA, 6th edition

Plowden, David (1932). (["Box 67"])(1990 August)[Douglas Monk, 3rd Assistant Engineer, Steamer Irvin L. Clymer , USS Great Lakes Fleet (890-101)]. https://collections.library.yale.edu/catalog/2041531.