Gaya APA
Strong, E, K. (1938).
Psychological Aspects Of Business (Ed.1.; Cet.1).
United States Of America:
McGraw-Hill Book Company.
Gaya MLA
Strong, Edward, K..
"Psychological Aspects Of Business".
Ed.1.; Cet.1
United States Of America:
McGraw-Hill Book Company,
1938.
Text.