Populus tremuloides

Chicago citation style
Roger del Moral. Populus tremuloides. 1997.00. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/plants/id/338. (Accessed July 20, 2018.)
APA citation style
Roger del Moral, (1997.00) Populus tremuloides. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/plants/id/338
MLA citation style
Roger del Moral. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/plants/id/338>.
Note: These citations are programmatically generated and may be incomplete.