Vicia ludoviciana Nutt. ex Torr. & A. Gray var. ludoviciana

Chicago citation style
Vicia ludoviciana Nutt. ex Torr. & A. Gray var. ludoviciana. 21 Mar 1920. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_13647252&repo=DPLA. (Accessed November 16, 2018.)
APA citation style
(21 Mar 1920) Vicia ludoviciana Nutt. ex Torr. & A. Gray var. ludoviciana. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_13647252&repo=DPLA
MLA citation style
Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_13647252&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.