Warner, G. C., & Lilly, A. (2022). The boxcar children collection, volume 2: Mystery ranch / mike's mystery / blue bay mystery (Unabridged.). Oasis Audio.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWarner, Gertrude Chandler, और Aimee Lilly. The Boxcar Children Collection, Volume 2: Mystery Ranch / Mike's Mystery / Blue Bay Mystery. Unabridged. Carol Stream: Oasis Audio, 2022.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWarner, Gertrude Chandler, और Aimee Lilly. The Boxcar Children Collection, Volume 2: Mystery Ranch / Mike's Mystery / Blue Bay Mystery. Unabridged. Oasis Audio, 2022.
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