Penrose, L S <br/><br/>
On the objective study of crowd behaviour / 
by L S  Penrose 
 - London :  H.K Lewis & Co. Ltd,  1952. 
 - 73p. : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Behaviour
<br/><br/><label>Dewey Class. No.: </label>301.1582  / PEN.O