Gaya APA

Doyle, S, A, C., Hardcastle, N. (2010). Sherlock Holmes : the sign of four Dominoes - Level Three (Jil. 3). United Kingdom: Oxford University Press.

Gaya MLA

Doyle, Sir, Arthur, Conan., Hardcastle, Nick. "Sherlock Holmes : the sign of four Dominoes - Level Three". Jil. 3 United Kingdom: Oxford University Press, 2010. Text.