Hartley, James <br/><br/>
Designing Instructional Text 

 - London  Kogan Page Limited  1987 
 - 176  29.0cm 
<br/><br/><label>ISBN: </label>0 85038 943 7 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>
<br/><br/><label>Dewey Class. No.: </label>371.32