Directory of railway officials & year book 1956-1966 
/ Westinghouse Brake and Signal Co. Ltd.,  
 - London:    Westinghouse Brake and Signal Co. Ltd.,  
 - 153p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science
<br/><br/><label>Universal Decimal Class. No.: </label>R 625.1.007(058)  / K6