Krahn, B. M. (2019). Behind closed doors. Zebra Books, Kensington Publishing Corp..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKrahn, Betina M. Behind Closed Doors. New York, NY: Zebra Books, Kensington Publishing Corp., 2019.
एमएलए (8वां संस्करण) प्रशस्ति पत्रKrahn, Betina M. Behind Closed Doors. Zebra Books, Kensington Publishing Corp., 2019.
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