TY  - BOOK
AU  - Lovelock David
AU  -  Rund Hanno
TI  - Tensors, differential forms and variational principles
U1  - B463, L5-;1 
PY  - 1975///
CY  - New York    
PB  -  John Wiley       
KW  -  Differential forms
KW  - Calculus of tensors
N1  - Appendix 331-352p
ER  -