Spencer, S. (2023). The final beat of the drum: Paniatowski's last case (First world edition.). Severn House.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSpencer, Sally. The Final Beat of the Drum: Paniatowski's Last Case. First world edition. Edinburgh: Severn House, 2023.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSpencer, Sally. The Final Beat of the Drum: Paniatowski's Last Case. First world edition. Severn House, 2023.
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