Lacy, Dan Mabry,  1914- <br/><br/>
Problemas y perspectivas de la comunicación de masas / 
Dan Lacy ; traducción de Miguel Ehrlich. 
 - Buenos Aires :  Editorial Troquel,  [1968] 
 - 150 p. ;  20 cm. 
<br/><br/> Translation of Freedom and communications. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Communication<br/>Communication--United States.<br/>Communication--Social aspects--United States.<br/>Freedom of information--United States.
<br/><br/><label>LC Class. No.: </label>P 91  / L152p 1968