Não informado. (1972). Literacy documentation. International Institute for Adult Literacy Methods.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Literacy Documentation. Teheran: International Institute for Adult Literacy Methods, 1972.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Literacy Documentation. International Institute for Adult Literacy Methods, 1972.
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