Dyck, V. A <br/><br/>
Introduction to computing  structured problem solving using WATFIV-S 
by V. A. Dyck 
 - Reston, Va.  Reston Pub. Co.  1979 
 - 604 p. : ill. ; 26 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0835931587 
<br/><br/><label>LCCN: </label>79-12466 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic digital computer--Programming