006530000a22002170004500 1260151 20240911061739.0 740325s1975 enka b 001 0 eng 74003724 0471233986 (pbk.) QA276 .E34 519.5 EHR Ehrenberg, A. S. C. Data reduction : analysing and interpreting statistical data / A. S. C. Ehrenberg. London : John Wiley, 1978. xvii, 391 p. : ill. ; 23 cm. Includes references & indexes. Data reduction. Mathematical statistics. Statistics. 0 0 0 0 RF RF 2019-02-13 0 519.5 EHR LC-59090 2019-02-13 00:00:00 2019-02-13 BK 18291 18291