Van Loon, H. W. (1932). Van Loon's geography: The study of the world we live in. Simon and Schuster.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रVan Loon, Hendrick Willem. Van Loon's Geography: The Study of the World We Live in. New York: Simon and Schuster, 1932.
एमएलए (9वां संस्करण) प्रशस्ति पत्रVan Loon, Hendrick Willem. Van Loon's Geography: The Study of the World We Live in. Simon and Schuster, 1932.
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