Pennefather, F. W. (1913). Is Ulster right? Murray.
Cita Chicago (17th ed.)Pennefather, F. W. Is Ulster Right? Lond.: Murray, 1913.
Cita MLA (8th ed.)Pennefather, F. W. Is Ulster Right? Murray, 1913.
Atenció: Aquestes cites poden no estar 100% correctes.