Effective study habits

Chicago citation style
Bird, Charles, 1893-. Effective study habits. [c1931]. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/001069095. (Accessed December 10, 2018.)
APA citation style
Bird, Charles, 1893-, ([c1931]) Effective study habits. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/001069095
MLA citation style
Bird, Charles, 1893-. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/001069095>.
Note: These citations are programmatically generated and may be incomplete.