"Another close-up of the scoop of the power shovel working on roadway at Norris Dam site."

Chicago citation style
Tennessee Valley Authority. 1933-. "Another close-up of the scoop of the power shovel working on roadway at Norris Dam site.". 1933-10-30. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/532701. (Accessed July 16, 2018.)
APA citation style
Tennessee Valley Authority. 1933-, (1933-10-30) "Another close-up of the scoop of the power shovel working on roadway at Norris Dam site.". Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/532701
MLA citation style
Tennessee Valley Authority. 1933-. Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/532701>.
Note: These citations are programmatically generated and may be incomplete.