Rogers, Everett M Shoemaker, F Floyd <br/><br/>
Communication of innovations  a cross - cultural approach 

 - 2nd ed. 
 - New York  The free press  1971 
 - xix,476p.; 24cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Communication<br/>Innovations<br/>Peruvian village<br/>Social change<br/>Social change