(1981). Competency-based education: Beyond minimum competency testing. Teachers College Press.
Chicago-Zitierstil (17. Ausg.)Competency-based Education: Beyond Minimum Competency Testing. New York [u.a.]: Teachers College Press, 1981.
MLA-Zitierstil (9. Ausg.)Competency-based Education: Beyond Minimum Competency Testing. Teachers College Press, 1981.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.