Não informado. (1970). Planning & Changing. Illinois State University, Department of Educational Administration.
Chicago-Zitierstil (17. Ausg.)Não informado. Planning & Changing. Normal, Ill: Illinois State University, Department of Educational Administration, 1970.
MLA-Zitierstil (8. Ausg.)Não informado. Planning & Changing. Illinois State University, Department of Educational Administration, 1970.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.