TY  - BOOK
AU  - Joan Welkowitz
AU  -  Robert B Ewen  Jacob Cohen
TI  - Introductory Statistics for the behavioral Sciences
U1  - 519.502415 
PY  - 1971///
CY  - New York
PB  - Academic Press
N1  - Joan Welkowitz; Robert B Ewen & Jacob Cohen: Introductory Statistics for the behavioral Sciences.  New York.  Academic Press, 1971.--(519.502415WEL)
ER  -