Gregory, P. (2016). Three sisters, three queens (Large print edition.). Thorndike Press, a part of Gale, Cengage Learning.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGregory, Philippa. Three Sisters, Three Queens. Large print edition. Waterville, Maine: Thorndike Press, a part of Gale, Cengage Learning, 2016.
एमएलए (8वां संस्करण) प्रशस्ति पत्रGregory, Philippa. Three Sisters, Three Queens. Large print edition. Thorndike Press, a part of Gale, Cengage Learning, 2016.
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