Walpole, H. (1930). Fortitude: Being a true and faithful account of the education of an adventurer. Modern Library.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWalpole, Hugh. Fortitude: Being a True and Faithful Account of the Education of an Adventurer. New York: Modern Library, 1930.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWalpole, Hugh. Fortitude: Being a True and Faithful Account of the Education of an Adventurer. Modern Library, 1930.
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