Doyle Arthur Conan. Sherlock Holmes The Engineer's Thumb. Shree Book Center.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDoyle Arthur Conan. Sherlock Holmes The Engineer's Thumb. Mumbai: Shree Book Center.
एमएलए (9वां संस्करण) प्रशस्ति पत्रDoyle Arthur Conan. Sherlock Holmes The Engineer's Thumb. Shree Book Center.
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