APA (7th ed.) Citation

Guba, E. G., & Lincoln, Y. S. (1989). Fourth generation evaluation (1. pr.). Sage.

Chicago Style (17th ed.) Citation

Guba, Egon G., and Yvonna S. Lincoln. Fourth Generation Evaluation. 1. pr. Newbury Park, Calif [u.a.]: Sage, 1989.

MLA (8th ed.) Citation

Guba, Egon G., and Yvonna S. Lincoln. Fourth Generation Evaluation. 1. pr. Sage, 1989.