Lovelock, David,  1938-. <br/><br/>
Tensors, differential forms, and variational principles / 
David Lovelock, Hanno Rund. 
 - New York :  John Wiley & Sons,  1975. 
 - 364 p. ;  23 cm. 
 - Pure and applied mathematics .
<br/><br/>Includes index and bibliography (p. 355-358). 
<br/><br/><label>ISBN: </label>0471548405 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Calculus of tensors.<br/>Differential forms.<br/>Calculus of variations.