Rangwala, S C, et. al. <br/><br/>
Principles of railway engineering 

 - 22 
 -   Charotar Publishing House, Gujarath  2011 
 - 480 
<br/><br/><label>ISBN: </label>2115 
<br/><br/><label>Dewey Class. No.: </label>625.1  RAN-P