APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (9. p.)

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