TY  - BOOK
AU  - Tryfos,Peter
TI  - Sampling methods for applied research: text and cases / 
SN  - 0471047279
AV  - QA276.6 .T78 1996
U1  - 519.52/ T875s 23
PY  - 1996///
CY  - New York
PB  - J. Wiley
KW  - 0
KW  - Sampling (Statistics)
ER  -