Willmore, T.J.. <br/><br/>
Introduction to Differential Geometry /  

 - 1st ed /  
 - New Delhi-2 :   Oxford University Press. 
 - p.317,x :  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics 
<br/><br/><label>Dewey Class. No.: </label>B6:3  / J9;10