Utton, Michael A. <br/><br/>
Industrial concentration / 
by M.A. Utton. 
 - Harmondsworth :  Penguin,  1970. 
 - 131 p. :  ill. ;  29 cm. 
<br/><br/>Bibliography : p. 125-128. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Industry.