TY  - BOOK
AU  - Agrawal S P
AU  -  Aggarwal J C
TI  - Information India. V1 - ; 1989 - ;  This library has V1 - ;1989 -
U1  - Sigma n2 'N89 
PY  - 1965///
CY  - New Delhi
PB  - Concept Publishing     
ER  -