TY  - BOOK
AU  - Bhattacharya,A.B.
AU  - Tiwari,Brij Mohan Lal
TI  - Problems in statistics : : for all competitive examinations with statistics, B. Com., M. Com., B. Sc., M. Sc., M. A. (Econ.) Students 
U1  - 519 BHA T  
PY  - 1959///.
CY  - Delhi : 
PB  - S. Chand & Co., 
KW  - Statistics
ER  -