Two men in lab using optical equipment

Chicago citation style
Two men in lab using optical equipment. undated. Retrieved from the Digital Public Library of America, https://calisphere.org/item/789bc198-a7da-47a9-a046-418685801633. (Accessed December 18, 2018.)
APA citation style
(undated) Two men in lab using optical equipment. Retrieved from the Digital Public Library of America, https://calisphere.org/item/789bc198-a7da-47a9-a046-418685801633
MLA citation style
Retrieved from the Digital Public Library of America <https://calisphere.org/item/789bc198-a7da-47a9-a046-418685801633>.
Note: These citations are programmatically generated and may be incomplete.