Evert M. Rogers  <br/><br/>
Communication of Innovations 

 - 2nd édition 
 - New York-London  Free press-Collier Macmillan Ltd  1971 
 - 475p  24cm 
<br/><br/><label>LCCN: </label>78122276 
<br/><br/><label>Dewey Class. No.: </label>301.242 R725c