Perham, M. F., & Simmons, J. (1963). Africa discovery: An anthology of exploration ([2d ed.). Northwestern University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPerham, Margery Freda, और Jack Simmons. Africa Discovery: An Anthology of Exploration. [2d ed. Evanston]: Northwestern University Press, 1963.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPerham, Margery Freda, और Jack Simmons. Africa Discovery: An Anthology of Exploration. [2d ed. Northwestern University Press, 1963.
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