Dun,P.D. <br/><br/>
Appropriate Technology / 
P.D.DUN 
 - Tokyo:  The Macmillan Press Ltd.,   1978 
<br/><br/>Includes bibliography & index. 
<br/><br/><label>ISBN: </label>033324206 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Technology 
<br/><br/><label>Dewey Class. No.: </label>609.1724  / DUN