Foundation, C. G. (1991). Portuguese expansion overseas and the art of ivory. FCG.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFoundation, Calouste Gulbenkian. Portuguese Expansion Overseas and the Art of Ivory. FCG, 1991.
एमएलए (8वां संस्करण) प्रशस्ति पत्रFoundation, Calouste Gulbenkian. Portuguese Expansion Overseas and the Art of Ivory. FCG, 1991.
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