Educational acceleration; appraisals and basic problems

Chicago citation style
Pressey, Sidney Leavitt, 1888-. Educational acceleration; appraisals and basic problems. [1949]. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/001068547. (Accessed December 13, 2018.)
APA citation style
Pressey, Sidney Leavitt, 1888-, ([1949]) Educational acceleration; appraisals and basic problems. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/001068547
MLA citation style
Pressey, Sidney Leavitt, 1888-. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/001068547>.
Note: These citations are programmatically generated and may be incomplete.