TY  - BOOK
AU  - Kumar, Ajay  .
TI  - Encyclopaedia of science and technology / 
SN  - 81-7890-123-4
U1  - Ak 
PY  - 2005///
CY  - Delhi : 
PB  - IVY Publishing House , 
KW  - Natural Science- Encyclopaedia
ER  -