Cita APA (7a ed.)
Nagel, T., & Richman, P. T. (1972). Competency-based instruccion: A strategy to eliminate failure : a branching programmed text.
Cita estilo Chicago (17a ed.)
Nagel, Thomas, y Paul T. Richman. Competency-based Instruccion: A Strategy to Eliminate Failure : A Branching Programmed Text. 1972.
Cita MLA (9a ed.)
Nagel, Thomas, y Paul T. Richman. Competency-based Instruccion: A Strategy to Eliminate Failure : A Branching Programmed Text. 1972.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.