NORMAL LUNG, SHOWN FOR COMPARISON WITH LUNG AFFECTED BY BLACK-LUNG DISEASE. (FROM THE SITES EXHIBITION. FOR OTHER IMAGES IN THIS ASSIGNMENT, SEE FICHE NUMBERS 49, 50, 51, 52.)

Chicago citation style
Environmental Protection Agency. 12/2/1970. NORMAL LUNG, SHOWN FOR COMPARISON WITH LUNG AFFECTED BY BLACK-LUNG DISEASE. (FROM THE SITES EXHIBITION. FOR OTHER IMAGES IN THIS ASSIGNMENT, SEE FICHE NUMBERS 49, 50, 51, 52.). 1972-06. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/553850. (Accessed September 22, 2018.)
APA citation style
Environmental Protection Agency. 12/2/1970, (1972-06) NORMAL LUNG, SHOWN FOR COMPARISON WITH LUNG AFFECTED BY BLACK-LUNG DISEASE. (FROM THE SITES EXHIBITION. FOR OTHER IMAGES IN THIS ASSIGNMENT, SEE FICHE NUMBERS 49, 50, 51, 52.). Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/553850
MLA citation style
Environmental Protection Agency. 12/2/1970. Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/553850>.
Note: These citations are programmatically generated and may be incomplete.