Head, George O <br/><br/>
Autocad productivity book : the non-programmer's guide to customizing autocad--for release 13 for windows /  James L. Brittain, George O. Head & A. Ted Schaefer..- 6th ed. 

 - 6E 
 - Chapel Hill, NC : Ventana Press, C1994. 
 - xxii, 270 p. : ill. ; 24 cm. + 1 computer disk (31/2 in.). 
<br/><br/><label>ISBN: </label>1566041856 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Systems engineering-mathematical models
<br/><br/><label>Dewey Class. No.: </label>620.0042 HEA