TY  - BOOK
AU  - Johnson,Palmer O.
AU  - Rao,Munamarty S.
TI  - Modern sampling methods: theory, experimentation, application 
U1  - 519.9 
PY  - 1959///
CY  - Minneapolis
PB  - University of Minnesota Press
KW  - Sampling (Statistics)
N1  - Bibliography : p. 87
ER  -