Ryan, Daniel L <br/><br/>
Principles of automated drafting 
Daniel L. Ryan 
 - New York  Marcel Dekker  c1984 
 - x, 319 p. : ill. ; 29 cm 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>9780824771751 
<br/><br/><label>ISSN: </label>83025201 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mechanical drawing - Automation
<br/><br/><label>Dewey Class. No.: </label>620.0042 RYA