RPG II and RPG III structured programming/  Nancy Stern. 

 - Second edition. 
 - New York :  Wiley,  1991. 
 - x, 685 pages :  Illustrations ;  28 cm. 
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<br/><br/><label>ISBN: </label>0471521965 (Paperback) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>RPG (Computer program language).<br/>Structured programming.
<br/><br/><label>LC Class. No.: </label>QA76.73.R25 RPG