Godfrey, Dave,  1938- <br/><br/>
The elements of CAL 
David Godfrey and Sharon Sterling 
 - Reston, Va  Reston Pub. Co.  c1982 
 - 286 p.  ill  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer-assisted instruction<br/>Computer-assisted instruction--Computer programs
<br/><br/><label>Dewey Class. No.: </label>371.3  / 9445