Clean Sweep, cleaning grassy area (1)

Chicago citation style
Clean Sweep, cleaning grassy area (1). May 1994. Retrieved from the Digital Public Library of America, http://collections.carli.illinois.edu/cdm/ref/collection/lew_slide/id/793. (Accessed December 12, 2018.)
APA citation style
(May 1994) Clean Sweep, cleaning grassy area (1). Retrieved from the Digital Public Library of America, http://collections.carli.illinois.edu/cdm/ref/collection/lew_slide/id/793
MLA citation style
Retrieved from the Digital Public Library of America <http://collections.carli.illinois.edu/cdm/ref/collection/lew_slide/id/793>.
Note: These citations are programmatically generated and may be incomplete.