Railway maths / 
pinnacle publications 
 - Haryana :  pinnacle publications,  2023. 
 - 587 p. :  ill. ;  28 cm. 
<br/><br/><label>ISBN: </label>
<br/><br/><label>Subjects--Topical Terms: </label><br/>Railway maths
<br/><br/><label>Dewey Class. No.: </label>385.076  / PIN