Davies, B. L. <br/><br/>
Computer-aided drawing and design / 
B. L. Davies, A. J. Robothan, A. Yarwood 
 - rev. edition 
 - London :  Chapman & Hall,  1991 
 - 328 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>0412342308 
<br/><br/><label>LCCN: </label>90-037458 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer graphics<br/>Computer-aided design