The bird book; a new book for bird-lovers, teachers and students, with more than 500 questions and answers

Chicago citation style
Shoffner, Charles Pennypacker, 1868-. The bird book; a new book for bird-lovers, teachers and students, with more than 500 questions and answers. [c1929]. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/007924377. (Accessed December 11, 2018.)
APA citation style
Shoffner, Charles Pennypacker, 1868-, ([c1929]) The bird book; a new book for bird-lovers, teachers and students, with more than 500 questions and answers. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/007924377
MLA citation style
Shoffner, Charles Pennypacker, 1868-. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/007924377>.
Note: These citations are programmatically generated and may be incomplete.