000 00309nam a2200121Ia 4500
008 190711s9999 xx 000 0 und d
082 _a660.28222 P9144
100 _aPRATT,H.R.C
245 0 _aCOUNTER CURRENT SEPERATION PROCESSES
260 _aAmsterdam
_bElsevier
_c1967
300 _a23X16
942 _cBK
_2DDC
999 _c13735
_d13735