TY  - BOOK
ED  - India. Central Statistical Organisation (New Delhi)
TI  - Sample survey of current interest in India: nineteenth and tewntieth annual reports (1967-98 and 1968-69)
U1  - 311.2 21st
PY  - 1970///
CY  - New Delhi
PB  - CSO
KW  - Sampling (Statistics)
ER  -