De Sola Pool, Ithiel       Ed. <br/><br/>
Trends in content analysis. 

 - Urbana  Univ. of Lllinois Press  1959 
 - 244p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>P0Sxz7
<br/><br/><label>Dewey Class. No.: </label>P0Sxz7  / I9