TY  - BOOK
AU  - Clarke  Alan
TI  - Evalualtion Research: An Introduction to Principles Methods and Practice
AV  - HA29 C841E 1999
PY  - 1999///
CY  - New Delhi
PB  - Sage Publications
KW  - EVALUATION RESEARCH / SOCIAL SCIENCES -- RESEARCH -- STATISTICS / STATISTICS
ER  -