Cirsium arvense var. integrifolium Wimm. & Grab

Chicago citation style
Cirsium arvense var. integrifolium Wimm. & Grab. 25 Jun 1942. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_12977431&repo=DPLA. (Accessed November 13, 2018.)
APA citation style
(25 Jun 1942) Cirsium arvense var. integrifolium Wimm. & Grab. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_12977431&repo=DPLA
MLA citation style
Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_12977431&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.