TY  - BOOK
AU  - Gupta S P
AU  -  Gupta M P
TI  - Business statistics
U1  - B28ObX5, L0;L7;4 
PY  - 1977///
CY  - New Delhi
PB  - Sultan Chand and Sons Publishers  
KW  -  Business statistics
KW  - Statistics
ER  -