APA ציטוט

Ellis, R. S. (1930). The psychology of individual differences. D. Appleton and Co.

Chicago Style (17th ed.) Citation

Ellis, Robert Sidney. The Psychology of Individual Differences. New York: D. Appleton and Co, 1930.

ציטוט MLA

Ellis, Robert Sidney. The Psychology of Individual Differences. D. Appleton and Co, 1930.