Armstrong, Russell M. <br/><br/>
Modular programming in COBOL / 
by Russell M. Armstrong. 
 - New York :  Wiley ,  1973. 
 - xi, 211 p. :  ill. ;  23 cm. 
 - Business data proceedings : a wiley series .
<br/><br/> "A Wiley-Interscience publications." 
<br/><br/><label>Subjects--Topical Terms: </label><br/>COBOL (Computer program language)
<br/><br/><label>Dewey Class. No.: </label>001.6424 ARM