APA Style
GUBA, Egon G., Lincoln, Ivonna S.. (1989).
Fourth generation evaluation .
London:
Sage.
Chicago Style
GUBA, Egon G., Lincoln, Ivonna S..
Fourth generation evaluation.
London:
Sage,
1989.
Text.
MLA Style
GUBA, Egon G., Lincoln, Ivonna S..
Fourth generation evaluation.
London:
Sage,
1989.
Text.
Turabian Style
GUBA, Egon G., Lincoln, Ivonna S..
Fourth generation evaluation.
London:
Sage,
1989.
Print.