Cougar Mountain cave in south central Oregon

Chicago citation style
Cowles, John. Cougar Mountain cave in south central Oregon. [1959?, n.d.]. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/007925249. (Accessed December 13, 2018.)
APA citation style
Cowles, John, ([1959?, n.d.]) Cougar Mountain cave in south central Oregon. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/007925249
MLA citation style
Cowles, John. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/007925249>.
Note: These citations are programmatically generated and may be incomplete.