TY  - BOOK
AU  - S D MauryaGayatri Devi 
AU  - Maurya, S D    Gayatri Devi 
TI  - Savial Envinormont of in dia 
U1  - 301.0954, MAV  
PY  - 1989///
CY  - Allahabad
PB  - Chugh
ER  -