TY  - GEN
AU  - Boruch, Robert F.
TI  - Randomized experiments for planning and evaluation: a practical guide 
SN  - 0803935102
AV  - H61 .B67 1997
PY  - 1997///
CY  - Thousand Oaks
PB  - Sage Publications
KW  - Social sciences
KW  - Methodology
KW  - Evaluation reseach (Social action programs)
N1  - Includes bibliographical references and index
ER  -