Armstrong, Russell M. <br/><br/>
Modular programming in COBOL / 
Russell M. Armstrong 
 - New York :  A Wiley-Interscience Publication,  1973 
 - xi, 211 p. :  ill. ;  23 cm. 
<br/><br/> "A Wiley-Interscience publication."  Includes index 
<br/><br/><label>ISBN: </label>0471033251 :  USD 14.50 
<br/><br/><label>Subjects--Topical Terms: </label><br/>COBOL (Computer program language)
<br/><br/><label>Dewey Class. No.: </label>001.6424