Rogers,Everett M. <br/><br/>
Diffusion of Innovations 
Everett M.Rogers 
 - 4th Ed. 
 - USA  The Free Press  1995 
 - xvii,519p.;  23cm. 
<br/><br/><label>ISBN: </label>0028740742 
<br/><br/><label>Dewey Class. No.: </label>303.484/  / ROG