Tribes 
Catherine MacPhail. 
 - New York  Infosoft International  c1993 
 - xx,664p.  ill.  23cm 
<br/><br/>Include indexes 
<br/><br/><label>ISBN: </label>001050000005020 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer-aided design.