APA aipamena

Guba, E. G., & Lincoln, Y. S. (1981). Effective evaluation. Jossey-Bass Publishers.

Chicago Style aipamena

Guba, Egon G., and Yvonna S. Lincoln. Effective Evaluation. San Francisco: Jossey-Bass Publishers, 1981.

MLA aipamena

Guba, Egon G., and Yvonna S. Lincoln. Effective Evaluation. Jossey-Bass Publishers, 1981.