000 00254nam a22000857a 4500
008 151211b xxu||||| |||| 00| 0 eng d
020 _a0256194467
082 _a004.2
245 1 0 _aAutoCAD 13 companion /
_bEssentials of AutoCad plus solid modeling
_cJames A. Leach.
999 _c1403
_d1403