Rangwala, S.C <br/><br/>
Principles of Railway Engineering 

 - 7th 
 - Anand  Charotar Publishing  1980 
 - p.390 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Railway Surveys<br/>Rail Gauges<br/>Signalling
<br/><br/><label>Dewey Class. No.: </label>625.1 R196P