TY  - BOOK
ED  - National Productivity Council (New Delhi)
TI  - Total energy and sustitution: seminar proceeings New Delhi, March 28-30, 1973
U1  - 531.6 21st
PY  - 1976///
CY  - New Delhi
PB  - National Productivity Council
KW  - Physics; Force and energy
ER  -