Quarterly Bulletin of the South African Library. National Library of South Africa.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रQuarterly Bulletin of the South African Library. National Library of South Africa.
एमएलए (9वां संस्करण) प्रशस्ति पत्रQuarterly Bulletin of the South African Library. National Library of South Africa.
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