GUBA, E. G. (1981). Effective Evaluation. Jossey Bass Classic.
Citación estilo ChicagoGUBA, Egon G. Effective Evaluation. Jossey Bass Classic, 1981.
Cita MLAGUBA, Egon G. Effective Evaluation. Jossey Bass Classic, 1981.
Warning: These citations may not always be 100% accurate.