TY  - BOOK
ED  - Punjab Agricultural UniversityDec 17-19, 1981
TI  - Systems theory and applications Vol.2: Proceedings- International Conference 
U1  - 003.02554 
PY  - 1981///
CY  - Ludhiana
PB  - UNESCO/ICAR
KW  - Systems theory
KW  - International conference proceedings
ER  -