Astragalus williamsii Rydb

Chicago citation style
Astragalus williamsii Rydb. 28 Jun 1901. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_13381852&repo=DPLA. (Accessed November 17, 2018.)
APA citation style
(28 Jun 1901) Astragalus williamsii Rydb. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_13381852&repo=DPLA
MLA citation style
Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_13381852&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.