000 00302nam a2200121Ia 4500
008 200906s9999 xx 000 0 und d
082 _a513.1 F939
100 _aFROST,P
245 0 _aELEMENTARY TREATISE ON CURVE MTRACING
260 _bCHELSEA PUB.CO., NEW YORK
_c1960
300 _a21X14
942 _cBK
999 _c61234
_d61234