TY  - BOOK
AU  - Wolf,Fredric M.
TI  - Meta-analysis: quantitative methods for research synthesis 
SN  - 978-0-8039-2756-8
U1  - 300.72 23E
PY  - 1986///
CY  - London
PB  - SAGE Publications
N1  - Bibliogr. p. 57-64
ER  -