McCall Smith, A., & Mackenzie, R. I. (2015). Bertie's guide to life and mothers (Unabridged.). Recorded Books Inc..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMcCall Smith, Alexander, और Robert Ian Mackenzie. Bertie's Guide to Life and Mothers. Unabridged. Prince Frederick: Recorded Books Inc., 2015.
एमएलए (8वां संस्करण) प्रशस्ति पत्रMcCall Smith, Alexander, और Robert Ian Mackenzie. Bertie's Guide to Life and Mothers. Unabridged. Recorded Books Inc., 2015.
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