MLA

Plowden, David (1932). Great Northern Railway, Eastbound Grain Extra with 0-8 Class 2-8-2 type Locomotive. Kandiyohi, Minnesota (No number extant). Box 175. 1956. https://collections.library.yale.edu/catalog/10593432.

APA, 6th edition

Plowden, David (1932). (["Box 175"])(1956)[Great Northern Railway, Eastbound Grain Extra with 0-8 Class 2-8-2 type Locomotive. Kandiyohi, Minnesota (No number extant)]. https://collections.library.yale.edu/catalog/10593432.