Arora, S.P. <br/><br/>
A text book of railway engineering / 
S. P. Arora. 
 - Delhi :  Dhanpat Rai & Sons,  1981. 
 - 5th ed. xv, 556 p. :  ill. ;  23 cm. 
<br/><br/> Includes index. 
<br/><br/>Includes bibliographical references.