Barbour, Edna H. <br/><br/>
PL/1 :   a self instructional manual. 

 - London :  The Macmillan Company,  1970. 
 - vi,301p.  :ill.  28cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>PL/1 (computer program language)
<br/><br/><label>LC Class. No.: </label>QTO QA76.5.B3