Hartley, James <br/><br/>
Designing instructional text 

 - New York  ; Kogan Page  , 1988 
 - 175p. 
<br/><br/><label>ISBN: </label>0893972185  £19.95 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education<br/>Methods Of Instruction
<br/><br/><label>Dewey Class. No.: </label>371.3  / HAR