Tensor calculus  
Synge, J. L. 
 - New York :  Dover Publications,  1949 
 - ix, 324 p. :  ill. ;  21 cm. 
<br/><br/> Reprint of the 1969 ed. published by University of Toronto Press, Toronto, which was issued as v. 5 of Mathematical expositions. | Includes index. 
<br/><br/><label>ISBN: </label>0486636127 :