Warner, G. C., & VanArsdale, A. (2016). Hidden in the haunted school. Albert Whitman & Company.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWarner, Gertrude Chandler, और Anthony VanArsdale. Hidden in the Haunted School. Chicago, Illinois: Albert Whitman & Company, 2016.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWarner, Gertrude Chandler, और Anthony VanArsdale. Hidden in the Haunted School. Albert Whitman & Company, 2016.
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