TY  - BOOK
AU  - Pearson, R. W. ; Boruch, R. F.
TI  - Lectures notes in Statistics Survey Research Designs: (Towards a better understanding of their costs and benefits - 38 )
SN  - 3540964282
U1  - 519.5 
PY  - 1980///
CY  - London
PB  - Springer
ER  -