TY  - BOOK
AU  - Beals,ralph e.
TI  - Statistics for economists
U1  - 330.182 BEA 
PY  - 1960///
CY  - London : 
PB  - Hutchinson University Library
KW  - Correlation coefficient
KW  - Economics-statistics
KW  - Sampling
N1  - Index
ER  -