Philippakis, A.s. <br/><br/>
Structured Cobol / 
A.s. Philippakis and Leonard J. Kazmier 
 - 3rd ed 
 - New York :  Mcgraw-Hill book,  1986 
 - 421 p 
<br/><br/><label>ISBN: </label>0070498091 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Covol (computer Program Language)
<br/><br/><label>Dewey Class. No.: </label>621.C6424  / P551S