TY  - BOOK
AU  - Wooldridge,Ronald J.
TI  - Evaluation of complex systems
SN  - 0875898572 (pbk.)
U1  - 350.0076 
PY  - 1981///
CY  - San Francisco
PB  - Jossey-Bass
KW  - Evaluation research (Social action programs)
N1  - Includes bibliographies and index
ER  -