Cite

George Westinghouse Memorial Bridge, Turtle Creek. Wilmerding, Pennsylvania (PB-1162-128)

MLA

Plowden, David (1932). George Westinghouse Memorial Bridge, Turtle Creek. Wilmerding, Pennsylvania (PB-1162-128). Box 51. 1962 November. https://collections.library.yale.edu/catalog/2041247.

APA, 6th edition

Plowden, David (1932). (["Box 51"])(1962 November)[George Westinghouse Memorial Bridge, Turtle Creek. Wilmerding, Pennsylvania (PB-1162-128)]. https://collections.library.yale.edu/catalog/2041247.