Não informado. (1968). Convergence: International journal of adult education. Ontario Institute for Studies in Education.
Chicago-referens (17:e uppl.)Não informado. Convergence: International Journal of Adult Education. Toronto, Canada: Ontario Institute for Studies in Education, 1968.
MLA-referens (8:e uppl.)Não informado. Convergence: International Journal of Adult Education. Ontario Institute for Studies in Education, 1968.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.