Kurpiel, S. (2020). Lone wolf (First edition.). Greenwillow Books, an imprint of HarperCollins Publishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKurpiel, Sarah. Lone Wolf. First edition. New York, NY: Greenwillow Books, an imprint of HarperCollins Publishers, 2020.
एमएलए (8वां संस्करण) प्रशस्ति पत्रKurpiel, Sarah. Lone Wolf. First edition. Greenwillow Books, an imprint of HarperCollins Publishers, 2020.
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