Davis Gordon B. <br/><br/>
Elementry Structured COBOL 
Gordon B.Davis 
 - New York  McGraw-Hill  1977 
 - vii,312p.  ill,working parer. 
<br/><br/><label>ISBN: </label>0-07-015782-0 
<br/><br/><label>Subjects--Topical Terms: </label><br/>COBOL(computer Program language)
<br/><br/><label>Dewey Class. No.: </label>001.6424  / DAE