APA (7th ed.) Citation

Doyle, A. C. (2009). O problema final. Global Notícias.

Chicago Style (17th ed.) Citation

Doyle, Arthur Conan. O Problema Final. Global Notícias, 2009.

MLA (8th ed.) Citation

Doyle, Arthur Conan. O Problema Final. Global Notícias, 2009.

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