TY - BOOK AU - Sober,Elliott AU - Wilson,David Sloan TI - Unto Others: the evolution and psychology of unselfish behavior SN - 0674930460 (cloth) U1 - 171.8 22 PY - 1998/// CY - Cambridge, Massachusetts. PB - Harvard University Press KW - Altruism KW - Egoism KW - Group selection (Evolution) KW - Evolution (Biology) N1 - Includes bibliographical references (p. 363-386) and index(p.387-394) ER -