TY  - BOOK
AU  - Seminar on Data Collection Techniques in the National Sample Survey, C. S. O. & I. S. I., Calcutta, June 1969
AU  - Murthy, M. N. ; ed.
TI  - Data collection techniques in the national sample survey; proceedings
U1  - 518.5 
PY  - 1970///
CY  - New Delhi
PB  - Department of Statistics
ER  -