Alkin, M. C. (2004). Evaluation roots: Tracing theorists' views and influences. Sage.
Citación estilo ChicagoAlkin, Marvin C. Evaluation Roots: Tracing Theorists' Views and Influences. Thousand Oaks, Calif: Sage, 2004.
Cita MLAAlkin, Marvin C. Evaluation Roots: Tracing Theorists' Views and Influences. Sage, 2004.
Warning: These citations may not always be 100% accurate.