Agatha Christie. (2013). Hercule Poriot. HARPER COLLINS PUB.,UK.
Cita Chicago (17th ed.)Agatha Christie. Hercule Poriot. HARPER COLLINS PUB.,UK, 2013.
Cita MLA (9th ed.)Agatha Christie. Hercule Poriot. HARPER COLLINS PUB.,UK, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.