Coleman, R. F. (2019). Robert B. Parker's The bitterest pill (Large print edition.). Thorndike Press, a part of Gale, a Cengage Company.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रColeman, Reed Farrel. Robert B. Parker's The Bitterest Pill. Large print edition. Farmington Hills, Mich: Thorndike Press, a part of Gale, a Cengage Company, 2019.
एमएलए (8वां संस्करण) प्रशस्ति पत्रColeman, Reed Farrel. Robert B. Parker's The Bitterest Pill. Large print edition. Thorndike Press, a part of Gale, a Cengage Company, 2019.
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