Silvey, Robert. <br/><br/>
Methods of viewer research employedc by the British Broadcasting Cor porationb /    
Robert Silvey. 
 - London :   Norbury, Lockwood ,   1950 
 - 37 p:    ill. ;    22 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research ----Great Britain.----