Mussen, P. H. (1980). Essentials of child development and personality. Harper and Row.
Cita Chicago (17th ed.)Mussen, Paul Henry. Essentials of Child Development and Personality. Harper and Row, 1980.
Cita MLA (9th ed.)Mussen, Paul Henry. Essentials of Child Development and Personality. Harper and Row, 1980.
Atenció: Aquestes cites poden no estar 100% correctes.