Revision of the American pikas (genus Ochotona)

Chicago citation style
Howell, Arthur Holmes, 1872-1940. Revision of the American pikas (genus Ochotona). 1924. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/001667605. (Accessed October 20, 2018.)
APA citation style
Howell, Arthur Holmes, 1872-1940, (1924) Revision of the American pikas (genus Ochotona). Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/001667605
MLA citation style
Howell, Arthur Holmes, 1872-1940. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/001667605>.
Note: These citations are programmatically generated and may be incomplete.