TY  - BOOK
AU  - Longford, Nicholas T  .
TI  - Missing data and small-area estimation: modern analytical equipment for the survey statistician / 
SN  - 1-85233-760-5
U1  - B28ObSamesa 
PY  - 2005///
CY  - New York : 
PB  - Springer-Verlag , 
KW  - Surveys- Methodology
ER  -