Não informado. (1967). Journal of research and development in education. University of Georgia, College of Education.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Journal of Research and Development in Education. Athens, Ga: University of Georgia, College of Education, 1967.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Journal of Research and Development in Education. University of Georgia, College of Education, 1967.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.