Cita APA (7a ed.)

Rushton, J. P., & Sorrentino, R. M. (1981). Altruism and helping behavior: Social, personality, and developmental perspectives. Lawrence Erlbaum.

Cita Chicago Style (17a ed.)

Rushton, J. Philippe, y Richard M. Sorrentino. Altruism and Helping Behavior: Social, Personality, and Developmental Perspectives. Hillsdale, N.J: Lawrence Erlbaum, 1981.

Cita MLA (8a ed.)

Rushton, J. Philippe, y Richard M. Sorrentino. Altruism and Helping Behavior: Social, Personality, and Developmental Perspectives. Lawrence Erlbaum, 1981.