Não informado. (1991). Adult Basic Education. Commission on Adult Basic Education.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Adult Basic Education. Atlanta, Ga: Commission on Adult Basic Education, 1991.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Adult Basic Education. Commission on Adult Basic Education, 1991.
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