TY  - BOOK
AU  - Tryfos,Peter
TI  - Sampling methods for applied research
SN  - 0471047279
U1  - 519.52 
PY  - 1996///
CY  - New York
PB  - John Willey & Sons INC.
KW  - Sampling (Statistics)
N1  - Includes bibliograohy and index; Homogeneous population ; Ackroyd population ; Ratio and regression estimators ; Cluster sampling ; Telephone surveys
ER  -