Não informado. (1957). Journal of education of the Faculty of Education. University of British Columbia, Faculty and College of Education.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Journal of Education of the Faculty of Education. Vancouver, Canada: University of British Columbia, Faculty and College of Education, 1957.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Journal of Education of the Faculty of Education. University of British Columbia, Faculty and College of Education, 1957.
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