Natural history studies

Chicago citation style
Thomson, J. Arthur (John Arthur), 1861-1933. Natural history studies. [1920?]. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/007936300. (Accessed November 19, 2018.)
APA citation style
Thomson, J. Arthur (John Arthur), 1861-1933, ([1920?]) Natural history studies. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/007936300
MLA citation style
Thomson, J. Arthur (John Arthur), 1861-1933. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/007936300>.
Note: These citations are programmatically generated and may be incomplete.