Concentration patterns in manufacturing 
by National Industrial Conference Board 
 - New York  National Industrial Conference Board  1959 
 - 128p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Manufacturing industries --United States<br/>Big business --United States
<br/><br/><label>Dewey Class. No.: </label>T315x73 N213c