00826nam--2200277---450-99000108506020331620050630102846.0000108506USA01000108506(ALEPH)000108506USA0100010850620020612d1999----km-y0enga0103----baAltruismJames R. OzingaWestportLondonPreagercopyr.1999XVII, 174 p.24 cmOZINGA,James R.553899990001085060203316II.3. 570(IV C 3333)162758 L.M.IV C00082370BKUMAMARIA1020020612USA010934PAOLA9020030121USA011320PATRY9020040406USA011715COPAT39020050630USA011028Altruism978649UNISA