Vetterli, R. (1976). Storming the citadel: The fundamental revolution against progressive education. Educational Media Press.
Chicago-Zitierstil (17. Ausg.)Vetterli, Richard. Storming the Citadel: The Fundamental Revolution Against Progressive Education. Costa Mesa, Calif: Educational Media Press, 1976.
MLA-Zitierstil (9. Ausg.)Vetterli, Richard. Storming the Citadel: The Fundamental Revolution Against Progressive Education. Educational Media Press, 1976.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.