Hughes, Joan Kirkby. <br/><br/>
PL/I structured programming / 
Joan K. Hughes. 
 - 2d ed. 
 - New York :  Wiley,  c1979. 
 - xii, 825 p. :  ill. ;  24 cm. 
<br/><br/> First ed. published in 1973 under title: PL/I programming.  Includes index. 
<br/><br/><label>ISBN: </label>0471019089 
<br/><br/><label>LCCN: </label>78015665  
<br/><br/><label>Subjects--Topical Terms: </label><br/>PL/I (Computer program language)
<br/><br/><label>LC Class. No.: </label>QA76.73.P25  / H83 1979 
<br/><br/><label>Dewey Class. No.: </label>001.6/424