Dertouzos, James N.,  1950, <br/><br/>
Economic effects of media concentration :  estimates from a model of the newspaper firm / 
James N. Dertouzos, William B. Trautman 
 - v, 20 pages ;  28 cm. 
 - The Rand paper series;  P-7652 .
 - The Rand paper series;  P-7652 .
<br/><br/>Includes bibliographical references: page 20 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mass media--Economic aspects--United States.<br/>Freedom of speech--United States.