Não informado. (1969). International journal of symbology. International Society for the Study of Symbols.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. International Journal of Symbology. Atlanta, Ga: International Society for the Study of Symbols, 1969.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. International Journal of Symbology. International Society for the Study of Symbols, 1969.
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