A biological survey of Alabama

Chicago citation style
Howell, Arthur Holmes, 1872-1940. A biological survey of Alabama. 1921. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/001667604. (Accessed October 18, 2018.)
APA citation style
Howell, Arthur Holmes, 1872-1940, (1921) A biological survey of Alabama. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/001667604
MLA citation style
Howell, Arthur Holmes, 1872-1940. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/001667604>.
Note: These citations are programmatically generated and may be incomplete.