000 00272nam a2200109Ia 4500
008 140122s9999 xx 000 0 und d
082 _a A.M Creig
100 _aA M Creighton
245 _aChemical regulation of biological mechanisms
260 _b
_c1982
942 _cBK
_2ddc
999 _c5296
_d5296