Welburn, Tyler. <br/><br/>
Advanced structured cobol : batch, on-line, and data-base concepts  [Books]. 
Tyler Welburn. 
 - California  Mayfield Publishing Company  1983 
 - Pages: 654 
<br/><br/><label>ISBN: </label>0874845580  0.00 
<br/><br/><label>Subjects--Personal Names: </label><br/>COBOL (Computer program language).<br/>Structured programming.
<br/><br/><label>Dewey Class. No.: </label>QA/76.73.C25  / WEL