TY  - BOOK
AU  - Boruch,Robert F.
TI  - Randomized experiments for planning and evaluation : a practical guide
T2  - Applied social research methods series
SN  - 0803935099 :
U1  - 300.724 
PY  - 1997///
CY  - Thousand Oaks
PB  - Sage Publications
KW  - Evaluation research
KW  - Social sciences; Ethics; Law; Population
N2  - Social Science
ER  -