Nettels, C. P. (1947). The roots of American civilization: A history of American colonial life. F.S. Crofts.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNettels, Curtis P. The Roots of American Civilization: A History of American Colonial Life. F.S. Crofts, 1947.
एमएलए (9वां संस्करण) प्रशस्ति पत्रNettels, Curtis P. The Roots of American Civilization: A History of American Colonial Life. F.S. Crofts, 1947.
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