TY  - BOOK
AU  - Pophan, W James.
AU  - Sirotnik, Kenneth A.
TI  - Educational statistics : : use and interpretation 
SN  - 060452528
U1  - 519.5  2
PY  - 1967///
CY  - New York
PB  - Harper and Row publishers
KW  - Descriptive statistics
KW  - Analysis of convariance
KW  - Nonparametrics statistics
ER  -