Autocad 3D book /
Head, George O.
Autocad 3D book / By George O Head, Charles A Pietra and Kenneth J L Segal. - 1st ed. - New Delhi : Galgotia Publication Pvt Ltd , 1990. - xxix,319p. ; 24 cm.
Learning the ropes
AutoCADs user coordinate system
620.00420285 / HEAG
Autocad 3D book / By George O Head, Charles A Pietra and Kenneth J L Segal. - 1st ed. - New Delhi : Galgotia Publication Pvt Ltd , 1990. - xxix,319p. ; 24 cm.
Learning the ropes
AutoCADs user coordinate system
620.00420285 / HEAG