Butman, Robert C. <br/><br/>
Technical economic considerations in public service broadcast communications for developing countries 

 - Massachussetts:  Massachussetts Institute of Technology,  1973. 
 -  ill.;  23cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational broadcasting<br/> Brazil<br/>Television in education<br/>Radio in education
<br/><br/><label>LC Class. No.: </label>IRA LB1044.8.B8