000 00315nam a2200121Ia 4500
008 170101s1964 xx 000 0 und d
082 _a591.5 E80S
100 _aETKIN, William
245 0 _aSocial behavior and organization among vertebrates
260 _bChicago, London
_c1964
300 _a307p
942 _2ddc
_cB
999 _c10039
_d10039