International yearbook of educational and instructional technology 1980/81 / 
Association of Educational and Training Technology editor, Anne Howe general editor, R.E.B. Budgett. 
 - London :  Kogan Page,  1980. 
 - 603 p. ;  23 cm. 
<br/><br/> Includes an index to'Aspects of educational technology', 1966-1979. 
<br/><br/>Bibliography: p.109-155. 
<br/><br/><label>ISBN: </label>0850382696 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational technology.