APA (7th ed.) Citation

Doyle, A. C., & O Brien, T. [. B. (2013). A study in scarlet (First edition.). New Central Book Agency Ltd.

Chicago Style (17th ed.) Citation

Doyle, Arthur Conan, and Terry [Adapted By] O Brien. A Study in Scarlet. First edition. Kolkata: New Central Book Agency Ltd, 2013.

MLA (9th ed.) Citation

Doyle, Arthur Conan, and Terry [Adapted By] O Brien. A Study in Scarlet. First edition. New Central Book Agency Ltd, 2013.

Warning: These citations may not always be 100% accurate.