TY  - GEN
AU  - Ehrenberg,A.S.C.
TI  - Data reduction: analysing and interpreting statistical data 
SN  - 0471233986 (pbk.)
AV  - QA276 .E34
U1  - 519.5 
PY  - 1978///
CY  - London
PB  - John Wiley, 
KW  - Data reduction
KW  - Mathematical statistics
KW  - Statistics
N1  - Includes references & indexes
ER  -