000 00349nam a2200145Ia 4500
008 140316s9999 xx 000 0 und d
020 _a0697222136
082 _a570
_bRAV/UN
100 _aRaven,Peter M
245 _aUnderstanding biology
260 _a
_bINCB publishers
_c1995
300 _a872
700 _aJohnson,George B
942 _2ddc
_cREF
999 _c19442
_d19442