Head, George O. <br/><br/>
Autocad 3d book:   covers through AutoCAD release 12 / 
By George O Head, Charles A Pietra and Kenneth J L Segal 
 - 1st ed. 
 - New Delhi :  Galgotia Publications Pvt Ltd ,  1994. 
 - c,319,5p. ;  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>AutoCAD's user coordinate system<br/>Surfaces and meshes<br/>New twists to old commands
<br/><br/><label>Dewey Class. No.: </label>620.00420285   / HEAG