Chopra,P.N, <br/><br/>
Collected Works Of Sardar Vallabhbhai Patel (Vol-XIII) 
P.N. Chopra  
 - 2nd . 
 - New Delhi  Konark Publishers Pvt Ltd  2015 
 - xxxiv,380p. 
<br/><br/><label>ISBN: </label>9789322008581