000 00402nam a2200169Ia 4500
008 180424s9999 xx 000 0 und d
020 _a870781472
084 _a70.43 T2
245 0 _aFree and Balanced Flow
250 _a\\197800ENGGPSX
260 _aD C Heath and Company
260 _b1978
260 _cToronto
300 _axi+77p
500 _aincludes index and biblioraphy
942 _cBK
999 _c44207
_d44207