Bell, J. B., & Ackerman, P. (1979). The early Adolescent and the junior high school curriculum. Dept. of Secondary Education, Faculty of Education, Univ. of Alberta.
Chicago-Zitierstil (17. Ausg.)Bell, James B., und Peter Ackerman. The Early Adolescent and the Junior High School Curriculum. [Edmonton]: Dept. of Secondary Education, Faculty of Education, Univ. of Alberta, 1979.
MLA-Zitierstil (9. Ausg.)Bell, James B., und Peter Ackerman. The Early Adolescent and the Junior High School Curriculum. Dept. of Secondary Education, Faculty of Education, Univ. of Alberta, 1979.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.