Hippel, Eric Von <br/><br/>
The sources of innovation 

 - New York:  Oxford University Press  1988 
 - xi, 218p. 
<br/><br/> Includes index. -Bibliography: p. 123-130. 
<br/><br/><label>ISBN: </label>0195040856 
<br/><br/><label>Subjects--Topical Terms: </label><br/>TECHNOLOGICAL INNOVATIONS--ECONOMIC ASPECTS<br/>ECONOMICS
<br/><br/><label>LC Class. No.: </label>HC 79.T4 Hip