Allie, S. (2020). Hellboy and the b.p.r.d. (2014): The beast of vargu and others (Collected.). Dark Horse Comics, LLC..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAllie, Scott. Hellboy and the B.p.r.d. (2014): The Beast of Vargu and Others. Collected. Cleveland: Dark Horse Comics, LLC., 2020.
एमएलए (8वां संस्करण) प्रशस्ति पत्रAllie, Scott. Hellboy and the B.p.r.d. (2014): The Beast of Vargu and Others. Collected. Dark Horse Comics, LLC., 2020.
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