000 00277nam a2200121Ia 4500
008 200906s9999 xx 000 0 und d
082 _a546.2 R491
100 _aRICCI.J.E
245 0 _aHYDROGEN ION CONCENTRATION
260 _bPRINCETON
_c1952
300 _a23X15
942 _cBK
999 _c61552
_d61552