Gravel trucks being hand-filled at pit

Chicago citation style
Swift, W. A. (William Arthur), 1877-1956. Gravel trucks being hand-filled at pit. 1924. Retrieved from the Digital Public Library of America, http://libx.bsu.edu/cdm/ref/collection/swift/id/668. (Accessed July 22, 2018.)
APA citation style
Swift, W. A. (William Arthur), 1877-1956, (1924) Gravel trucks being hand-filled at pit. Retrieved from the Digital Public Library of America, http://libx.bsu.edu/cdm/ref/collection/swift/id/668
MLA citation style
Swift, W. A. (William Arthur), 1877-1956. Retrieved from the Digital Public Library of America <http://libx.bsu.edu/cdm/ref/collection/swift/id/668>.
Note: These citations are programmatically generated and may be incomplete.