TY  - BOOK
AU  - Bennett,Carl A.(Carl Allen),b.1921
AU  - Lumsdaine,Arthur A.
AU  - 
TI  - Evaluation and experiment: some critical issues in assessing social programs 
SN  - 0120888505
PY  - 1975///
CY  - New York
PB  - Academic Press
KW  - Evaluation research (Social action programs)
KW  - United States
KW  - Congresses
N1  - 'Outgrowth of a symposium held at the Battelle Seattle Research Center in July, 1973.'; Includes bibliographies
ER  -