Não informado. (1968). Convergence: International journal of adult education. Ontario Institute for Studies in Education.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Convergence: International Journal of Adult Education. Toronto, Canada: Ontario Institute for Studies in Education, 1968.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Convergence: International Journal of Adult Education. Ontario Institute for Studies in Education, 1968.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.