TY  - BOOK
AU  - Guba, Egon G. 
AU  - Lincoln, Yvonna S. 
TI  - Fourth generation evaluation
SN  - 0803932359
AV  - AZ191 .G82 1989 
PY  - 1989///
CY  - Newbury Park, Calif. : 
PB  - Sage Publ.
KW  - Evaluation-Methodology
KW  - Negotiation
ER  -