"Railway operating and Signalling Techniques in Europe, Japan & United States of America" 

 - New  York United Nations USA      1953 
 - "iv, 109p."  cm. 
<br/><br/><label>Standard No.: </label>111522 
<br/><br/><label>Source: </label> Reports 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering
<br/><br/><label>Dewey Class. No.: </label>"D515:8.5.N53t, J3/UN"