APA ציטוט

Guba, E. G., & Lincoln , Y. S. (1989). Fourth generation evaluation. SAGE Publications.

Chicago Style (17th ed.) Citation

Guba, Egon G., and Yvonna S. Lincoln. Fourth Generation Evaluation. California: SAGE Publications, 1989.

ציטוט MLA

Guba, Egon G., and Yvonna S. Lincoln. Fourth Generation Evaluation. SAGE Publications, 1989.