Worker prepares to press ingot in hydraulic gun press

Chicago citation style
Hartman. Worker prepares to press ingot in hydraulic gun press. 1941-11-06. Retrieved from the Digital Public Library of America, http://digital.library.temple.edu/cdm/ref/collection/p15037coll3/id/960. (Accessed December 12, 2018.)
APA citation style
Hartman, (1941-11-06) Worker prepares to press ingot in hydraulic gun press. Retrieved from the Digital Public Library of America, http://digital.library.temple.edu/cdm/ref/collection/p15037coll3/id/960
MLA citation style
Hartman. Retrieved from the Digital Public Library of America <http://digital.library.temple.edu/cdm/ref/collection/p15037coll3/id/960>.
Note: These citations are programmatically generated and may be incomplete.