Gregory, A. (2010). Britain and Ireland. Wiley-Blackwell.
Cita Chicago (17th ed.)Gregory, A. Britain and Ireland. Wiley-Blackwell, 2010.
Cita MLA (9th ed.)Gregory, A. Britain and Ireland. Wiley-Blackwell, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.