Amur, K.S., et al <br/><br/>
Introduction to differential geometry 
K.S. Amur, et al 
 - New Delhi  Narosa Publishing House  2010 
 - ix  241 
<br/><br/><label>ISBN: </label>9788184870503 
<br/><br/><label>Dewey Class. No.: </label>8.05  / AMUR