000 00279nam a2200109Ia 4500
008 200302s9999 xx 000 0 und d
100 _aGeorge O. Head & Other
245 _a1000 Autocad Tips & Tricks
260 _bGalgotia Publications Pvt. Ltd.
260 _c1997
300 _a544 P.,
999 _c953
_d953