000 00419nam a2200169Ia 4500
008 180424s9999 xx 000 0 und d
084 _a543 P5
100 _a"Perrin, D D"
245 0 _aMasking and Demasking of Chemical Reactions
250 _a\\197000ENGGPSX
260 _aWiley Eastern
260 _b1970
260 _cNew Delhi
300 _ax+211p
500 _aincludes index and biblioraphy
942 _cBK
999 _c28122
_d28122