TY  - BOOK
AU  - GUPTA N P
AU  -  SHARMA S C
TI  - International symposium on science technology and development:  Selected papers.   
U1  - AoaF.N89p., M9/SC 
PY  - 1989///
CY  -  New Delhi 
PB  - Dishantor Creative Consultans       
ER  -