Cite

Northern Pacific Railway Freight Train. Near Helena, Montana (NP-852-1-4)

MLA

Plowden, David. Northern Pacific Railway Freight Train. Near Helena, Montana (NP-852-1-4). 1952. https://collections.library.yale.edu/catalog/2041701.

APA, 6th edition

Plowden, D. (1952). Northern Pacific Railway Freight Train. Near Helena, Montana (NP-852-1-4). https://collections.library.yale.edu/catalog/2041701.