Altruism and aggression : biological and social origins / edited by Carolyn Zahn-Waxler, E. Mark Cummings, Ronald Iannotti.

Cambridge : Cambridge University Press, 1986.

xiii, 337 pages : illustrations ; 24 cm.

Based on a conference held at the National Institute of Mental Health, Bethesda, Md. in Apr. 1982, under the auspices of the Society for Research in Child Development and the Child Development Foundation

Includes bibliographies and indexes