Cornfalfa Farms; Alfalfa Production 026: Plowing with tractor

Chicago citation style
Cornfalfa Farms; Alfalfa Production 026: Plowing with tractor. ca. 1915. Retrieved from the Digital Public Library of America, http://content.mpl.org/cdm/ref/collection/nbhs/id/266. (Accessed May 28, 2020.)
APA citation style
(ca. 1915) Cornfalfa Farms; Alfalfa Production 026: Plowing with tractor. Retrieved from the Digital Public Library of America, http://content.mpl.org/cdm/ref/collection/nbhs/id/266
MLA citation style
Retrieved from the Digital Public Library of America <http://content.mpl.org/cdm/ref/collection/nbhs/id/266>.
Note: These citations are programmatically generated and may be incomplete.