Robards, K. (2017). The ultimatum (Large Print edition.). Wheeler Publishing, a part of Gale, Cengage Learning.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRobards, Karen. The Ultimatum. Large Print edition. Waterville, Maine: Wheeler Publishing, a part of Gale, Cengage Learning, 2017.
एमएलए (8वां संस्करण) प्रशस्ति पत्रRobards, Karen. The Ultimatum. Large Print edition. Wheeler Publishing, a part of Gale, Cengage Learning, 2017.
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