Ray George F <br/><br/>
Diffusion of mature technologies 
Ray George F 
 - Cambridge  Cambridge University Press       1984 
 - ix,96p  cm. 
 - National institute of economic and social research,xxxvi .
<br/><br/><label>Standard No.: </label>30473 
<br/><br/><label>Source: </label> Annuals, Advances 
<br/><br/><label>Dewey Class. No.: </label>X9:327.1'N8, M4