Não informado. (1968). Convergence: International journal of adult education. Ontario Institute for Studies in Education.
Chicago-Zitierstil (17. Ausg.)Não informado. Convergence: International Journal of Adult Education. Toronto, Canada: Ontario Institute for Studies in Education, 1968.
MLA-Zitierstil (8. Ausg.)Não informado. Convergence: International Journal of Adult Education. Ontario Institute for Studies in Education, 1968.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.