Não informado. (1976). Journal of Vocational Education Research. American Vocational Education Research Association.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Journal of Vocational Education Research. Madison, Wis: American Vocational Education Research Association, 1976.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Journal of Vocational Education Research. American Vocational Education Research Association, 1976.
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