TY  - BOOK
ED  - Indian. National Sample Survey Office
TI  - NSS 24th round : September 1969-June 1970 ; instructions to field staff
U1  - 311.2 21st
PY  - 1969///
CY  - Calcutta
PB  - The Authors
KW  - Sampling (Statistics)
N1  - Contents: v.1. Design, concepts, definitions and procedures
ER  -