Powell, E., Mignola, M., & Cloonan, B. (2023). Four gathered on Christmas Eve (First edition.). Dark Horse Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPowell, Eric, Mike Mignola, और Becky Cloonan. Four Gathered on Christmas Eve. First edition. Milwaukie, OR: Dark Horse Books, 2023.
एमएलए (8वां संस्करण) प्रशस्ति पत्रPowell, Eric, et al. Four Gathered on Christmas Eve. First edition. Dark Horse Books, 2023.
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