@book{596, author = {Joint Commitee on Standards}, title = {Normas de evaluación para programas, proyectos y material educativo /}, publisher = {Trillas}, year = {1988}, address = {México, D.F.}, edition = {1a. ed.}, note = {Títulooriginal: Standards for evaluations of educational programs, projects and materials. Glosario p. 162} }