The U.S. Geological Survey [microform] /

Chicago citation style
Library of Congress. Environmental Policy Division. The U.S. Geological Survey [microform] /. 1975. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/003217850. (Accessed November 13, 2018.)
APA citation style
Library of Congress. Environmental Policy Division, (1975) The U.S. Geological Survey [microform] /. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/003217850
MLA citation style
Library of Congress. Environmental Policy Division. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/003217850>.
Note: These citations are programmatically generated and may be incomplete.