TY  - BOOK
AU  - Kraemer,Helena Chmura  .
AU  - Thiemann,Sue  .
TI  - How many subject? : statistical power analysis in research / 
SN  - 0803929498
U1  - 001.422 
PY  - 1991///
CY  - London : 
PB  - Sage Publications , 
KW  - RESEARCH STATISTICAL METHODS
N1  - Include index
ER  -