Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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