TY  - BOOK
AU  - Lovelock, David.
AU  - Rund, Hanno.
TI  - Tensors, differential forms and variational principles
T2  - Pure and Applied Mathematics,
SN  - 0471548405
U1  - 515.63 
PY  - 1975///
CY  - New York
PB  - John Wiley & Sons
N1  - Wiley-Interscience Publication
ER  -