Não informado. (1977). Adult Literacy & Basic Education. Comission on Adult Basic Education.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Adult Literacy & Basic Education. Auburn, Ala: Comission on Adult Basic Education, 1977.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Adult Literacy & Basic Education. Comission on Adult Basic Education, 1977.
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