TY  - BOOK
AU  - Cochran, William G.
TI  - Sampling techniques
SN  - 9971-51-271-8
U1  - 519.52 
PY  - 1977///
CY  - New York
PB  - John
KW  - Sampling
KW  - Statistics
KW  - Surveys
N1  - Includes index; Knowhow
ER  -