Lipschutz, Martin M. <br/><br/>
Theory and Problems of Differential Geometry 

 - New York  McGraw-Hill Book Company  1969 
 - 269 
<br/><br/><label>Publisher. No.: </label> Higginbothams 
<br/><br/><label>Subjects--Personal Names: </label> Mathematics 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics