APA (7th ed.) Zitazioa
Schell, R. E., & Hall, E. (1979). Developmental psychology today (3rd ed.). Random House.
Chicago Style (17th ed.) Zitazioa
Schell, Robert E., eta Elizabeth Hall. Developmental Psychology Today. 3rd ed. New York: Random House, 1979.
MLA (9th ed.) Zitazioa
Schell, Robert E., eta Elizabeth Hall. Developmental Psychology Today. 3rd ed. Random House, 1979.
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