TY  - BOOK
AU  - Lutz, W.
TI  - Survey sampling
U1  - 614.42 
PY  - 1986///
CY  - [SL]
PB  - IEA
KW  - Preventive Medicine
KW  - Medical Sciences
N1  - Prev. Title; Sampling: How to select people, household, places to study community health
ER  -