Spencer, S. (2021). Poison (First world edition.). Severn House.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSpencer, Sally. Poison. First world edition. Edinburgh, Scotland: Severn House, 2021.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSpencer, Sally. Poison. First world edition. Severn House, 2021.
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