Morgan, C. T., & King, R. A. (1975). Introduction to Psychology (5th.ed.). McGraw-Hill.
Cita Chicago (17th ed.)Morgan, Clifford T., i Richard A. King. Introduction to Psychology. 5th.ed. New York: McGraw-Hill, 1975.
Cita MLA (9th ed.)Morgan, Clifford T., i Richard A. King. Introduction to Psychology. 5th.ed. McGraw-Hill, 1975.
Atenció: Aquestes cites poden no estar 100% correctes.