Open Pit Copper Mine. Bisbee, Arizona (6780-239)
MLA
Plowden, David. Open Pit Copper Mine. Bisbee, Arizona (6780-239). 1978. https://collections.library.yale.edu/catalog/2041107.
APA, 6th edition
Plowden, D. (1978). Open Pit Copper Mine. Bisbee, Arizona (6780-239). https://collections.library.yale.edu/catalog/2041107.