Não informado. (1978). Viewpoints in teaching and learning. Indiana University, School of Education.
Chicago-Zitierstil (17. Ausg.)Não informado. Viewpoints in Teaching and Learning. Bloomington, Ind: Indiana University, School of Education, 1978.
MLA-Zitierstil (8. Ausg.)Não informado. Viewpoints in Teaching and Learning. Indiana University, School of Education, 1978.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.