TY  - GEN
AU  - Mukhopadhyay, Asok Kumar
TI  - (An) Introduction to the calculus of variation: for engineering and economists 
U1  - 515.64 
PY  - 1978///
CY  - Delhi
PB  - Khanna publishers
KW  - VARIATIONS CALCULUS
N1  - Includes exercises, answers and index
ER  -