Thomas, S. D., & Spencer, T. D. (1970). Perspectives in child psychology: Research and review. Mcgraw-Hill.
Cita Chicago (17th ed.)Thomas, Spencer D., i Thomas D. Spencer. Perspectives in Child Psychology: Research and Review. New York: Mcgraw-Hill, 1970.
Cita MLA (9th ed.)Thomas, Spencer D., i Thomas D. Spencer. Perspectives in Child Psychology: Research and Review. Mcgraw-Hill, 1970.
Atenció: Aquestes cites poden no estar 100% correctes.