Food service workers?

Chicago citation style
Swift, W. A. (William Arthur), 1877-1956. Food service workers?. circa 1920s. Retrieved from the Digital Public Library of America, http://libx.bsu.edu/cdm/ref/collection/swift/id/435. (Accessed June 22, 2018.)
APA citation style
Swift, W. A. (William Arthur), 1877-1956, (circa 1920s) Food service workers?. Retrieved from the Digital Public Library of America, http://libx.bsu.edu/cdm/ref/collection/swift/id/435
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/435>.
Note: These citations are programmatically generated and may be incomplete.