Self sterility and cross sterility in the apple /

Chicago citation style
Gowen, John Whittemore, 1893-. Self sterility and cross sterility in the apple /. 1920. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/100596054. (Accessed November 15, 2018.)
APA citation style
Gowen, John Whittemore, 1893-, (1920) Self sterility and cross sterility in the apple /. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/100596054
MLA citation style
Gowen, John Whittemore, 1893-. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/100596054>.
Note: These citations are programmatically generated and may be incomplete.