Lea, C. (2021). The metal heart: A novel of love and valor in World War II (First Harper Perennial edition.). Harper Perennial.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLea, Caroline. The Metal Heart: A Novel of Love and Valor in World War II. First Harper Perennial edition. New York: Harper Perennial, 2021.
एमएलए (8वां संस्करण) प्रशस्ति पत्रLea, Caroline. The Metal Heart: A Novel of Love and Valor in World War II. First Harper Perennial edition. Harper Perennial, 2021.
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