TY  - GEN
AU  - Guba, Egon G
AU  - Lineoln, Yvonna S
TI  - Fourth generation evaluation
SN  - 0803932359
U1  - 001.4 GUB 
CY  - Newdelhi, Sage Publications
KW  - Evaluation- Methodology/ Fourth generation evaluation/ Negotiation
ER  -