TY  - BOOK
AU  - Doughty,Noel A.(Noel Arthur).
TI  - Lagrangian interaction: an introduction to relativistic symmetry in electrodynamics and gravitation 
SN  - 0-201-41625-5
AV  - QC631 D68
PY  - 1990///
CY  - Menlo Park, Calif.
PB  - Addison-Wesley
N1  - Incluye bibliografia
ER  -