Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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