Cooney, C. B. (2020). Before she was Helen. Poisoned Pen Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCooney, Caroline B. Before She Was Helen. Naperville, Illinois: Poisoned Pen Press, 2020.
एमएलए (8वां संस्करण) प्रशस्ति पत्रCooney, Caroline B. Before She Was Helen. Poisoned Pen Press, 2020.
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