TY  - BOOK
AU  - Tryfos,Peter
TI  - Sampling methods for applied research: text and cases 
SN  - 0471047279 (cloth : alk. paper)
AV  - QA276.6 T78 1996
PY  - 1996///
CY  - New York
PB  - John Wiley & Sons
KW  - Sampling (Statistics)
N1  - Includes bibliographical references and index
ER  -