00546nam a2200193Ia 4500 48454 140430s9999 xx 000 0 und d 0674930460 PK-LaUMT ISSR 171.8 SOB-U Sober, Elliott Unto others the evolution and psychology of unselfish behavior Sober, Elliott<>Wilson, David Sloan Cambridge,USA: Harvard University Press, 1998 394 p. EN Altruism Wilson, David Sloan BK 46259 46259 0 0 0 0 01 01 2014-04-30 0 ISSR 171.8 SOB-U 57681 2014-05-06 00:00:00 2014-05-06 BK