TY  - BOOK
AU  - Lovelock, David.
AU  - Rund, Hanno.
TI  - Tensors differential forms and variational principles
T2  - Pure and Applied Mathematics
SN  - 0471584505
U1  - 515.63 
PY  - 1975///
CY  - New York
PB  - Wiley Interscience Publication
ER  -