TY  - BOOK
AU  - Prafulla Ray 
AU  - Ray, Prafulla 
TI  - Aavishkar Tr.by Veerendranath mishra. 
U1  - 891.433, RAY  
PY  - 0000///
CY  - Allahabad
PB  - Bharati Bhandar
ER  -