RUCH, J. C. (1984). Psychology The Personal Science John C. Ruch. Wadsworth Publising.
Lua i Stíl Chicago (17ú heag.)RUCH, John C. Psychology The Personal Science John C. Ruch. Wadsworth Publising, 1984.
Lua MLA (8ú heag.)RUCH, John C. Psychology The Personal Science John C. Ruch. Wadsworth Publising, 1984.
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