Rogers, Everett M. <br/><br/>
Communication of innovations; a cross-cultural approach 

 - 2nd ed. 
 - New York  Free Press  1971 
 - xix, 476 p.  ill.; index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social change<br/>Technological innovations<br/>Diffusion of innovations
<br/><br/><label>LC Class. No.: </label>MED HM101  / R57 1971