Miner drilling in copper mine with machine drill, undercutting, (this is the operation before blasting and caving. Caving ground can be seen to the rear. Probably Globe, Arizona

Chicago citation style
R. Raffius. Miner drilling in copper mine with machine drill, undercutting, (this is the operation before blasting and caving. Caving ground can be seen to the rear. Probably Globe, Arizona. [Date not indicated]. Retrieved from the Digital Public Library of America, http://ark.cdlib.org/ark:/13030/kt438nb9xb. (Accessed December 11, 2018.)
APA citation style
R. Raffius, ([Date not indicated]) Miner drilling in copper mine with machine drill, undercutting, (this is the operation before blasting and caving. Caving ground can be seen to the rear. Probably Globe, Arizona. Retrieved from the Digital Public Library of America, http://ark.cdlib.org/ark:/13030/kt438nb9xb
MLA citation style
R. Raffius. Retrieved from the Digital Public Library of America <http://ark.cdlib.org/ark:/13030/kt438nb9xb>.
Note: These citations are programmatically generated and may be incomplete.