TY  - GEN
AU  - Pars,L.A.
TI  - An introduction to the calculus of variations
AV  - QA315 .P18
U1  - 517.4 
PY  - 1965///
CY  - London
PB  - Heinemann
KW  - Calculus of variations
KW  - Calculus
N1  - Includes bibliography & index
ER  -