Cita APA (7a ed.)

Townshend, C. (1999). Ireland: The 20th century. Arnold.

Cita Chicago Style (17a ed.)

Townshend, Charles. Ireland: The 20th Century. London [etc.]: Arnold, 1999.

Cita MLA (9a ed.)

Townshend, Charles. Ireland: The 20th Century. Arnold, 1999.