Association for Supervision and Curriculum Development. (1968). Youth education: Problems, perspectives, promises. s.n.
Chicago-Zitierstil (17. Ausg.)Association for Supervision and Curriculum Development. Youth Education: Problems, Perspectives, Promises. Washington, D.C: s.n, 1968.
MLA-Zitierstil (9. Ausg.)Association for Supervision and Curriculum Development. Youth Education: Problems, Perspectives, Promises. s.n, 1968.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.