TY  - BOOK
AU  - Rossi,Peter Henry
AU  - Freeman,Howard E.
TI  - Evaluation: a systematic approach
SN  - 0803944586
PY  - 1993///
CY  - Newbury Park, Calif.
PB  - Sage
KW  - Evaluation research (Social action programs)
N1  - Includes bibliographical references and index
ER  -