Nida, W. L. (1926). Explorers and pioneers: I. Following Columbus. II. Following the frontier. The Macmillan Co..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNida, William Lewis. Explorers and Pioneers: I. Following Columbus. II. Following the Frontier. New York: The Macmillan Co., 1926.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNida, William Lewis. Explorers and Pioneers: I. Following Columbus. II. Following the Frontier. The Macmillan Co., 1926.
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