TY  - BOOK
AU  - Guba,Egon G.
AU  - Lincoln,Yvonna S.
TI  - Fourth generation evaluation
SN  - 0-803-93235-9
U1  - 001.4  20
PY  - 1989///
CY  - Newbury Park, Calif
PB  - Sage Publications
KW  - Evaluation
KW  - Evaluationsforschung
N1  - Inclusive of Bibliography , references
ER  -