Quercus robur

Chicago citation style
Sowerby, James, 1757-1822. Quercus robur. 1792. Retrieved from the Digital Public Library of America, http://www.cppdigitallibrary.org/items/show/2006. (Accessed December 18, 2018.)
APA citation style
Sowerby, James, 1757-1822, (1792) Quercus robur. Retrieved from the Digital Public Library of America, http://www.cppdigitallibrary.org/items/show/2006
MLA citation style
Sowerby, James, 1757-1822. Retrieved from the Digital Public Library of America <http://www.cppdigitallibrary.org/items/show/2006>.
Note: These citations are programmatically generated and may be incomplete.