Lua APA (7ú heag.)

Tyler, L. E. (1947). The psychology of human differences. D. Appleton-Century Co.

Lua i Stíl Chicago (17ú heag.)

Tyler, Leona Elizabeth. The Psychology of Human Differences. New York: D. Appleton-Century Co, 1947.

Lua MLA (9ú heag.)

Tyler, Leona Elizabeth. The Psychology of Human Differences. D. Appleton-Century Co, 1947.

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