TY  - BOOK
AU  - Pawson, Ray , 1948-
AU  - Tilley, Nick
TI  - Realistic evaluation
SN  - 0761950095
AV  - H62.P39 1997 
PB  - Sage
KW  - Evaluation research (Social action programs)
KW  - Evaluation
KW  - H
N1  - Reprint 2003; Includes bibliographical references (p. [221]-227) and index
ER  -