Library discount control: a survey to January 1940, with a supplementary report to January 1941

Chicago citation style
Orman, Oscar C. (Oscar Carl), 1912-1983. Library discount control: a survey to January 1940, with a supplementary report to January 1941. 1941. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/001166415. (Accessed December 18, 2018.)
APA citation style
Orman, Oscar C. (Oscar Carl), 1912-1983, (1941) Library discount control: a survey to January 1940, with a supplementary report to January 1941. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/001166415
MLA citation style
Orman, Oscar C. (Oscar Carl), 1912-1983. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/001166415>.
Note: These citations are programmatically generated and may be incomplete.