Pinus ponderosa P. Lawson & C. Lawson

Chicago citation style
Pinus ponderosa P. Lawson & C. Lawson. Jul 1880. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_13201570&repo=DPLA. (Accessed December 17, 2018.)
APA citation style
(Jul 1880) Pinus ponderosa P. Lawson & C. Lawson. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_13201570&repo=DPLA
MLA citation style
Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_13201570&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.