Pogorelov, A. V.  <br/><br/>
Differential geometry /  A V Pogorelov; Leo F Boron 
Sigurdur Helgason. 
 - New York :  Academic Press,  [196 ?]. 
 - ix, 171 p. ;  24 cm. 
<br/><br/>Includes bibliography and index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geometry, Differential.<br/>Symmetric spaces.
<br/><br/><label>Dewey Class. No.: </label>516.36  / POD 196