Cita APA

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

Citación estilo Chicago

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

Cita MLA

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

Warning: These citations may not always be 100% accurate.