Boom, J. (1989). Different conceptions of stage in theories of cognitive and moral development. Journal of moral education, 18(3), 208-217.
Chicago-Zitierstil (17. Ausg.)Boom, Johannes. "Different Conceptions of Stage in Theories of Cognitive and Moral Development." Journal of Moral Education 18, no. 3 (1989): 208-217.
MLA-Zitierstil (9. Ausg.)Boom, Johannes. "Different Conceptions of Stage in Theories of Cognitive and Moral Development." Journal of Moral Education, vol. 18, no. 3, 1989, pp. 208-217.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.
