Cita APA (7a ed.)

O'Brien, M., & O'Brien, C. C. (1972). A Concise history of Ireland. Thames and Hudson.

Cita Chicago Style (17a ed.)

O'Brien, Máire, y Conor Cruise O'Brien. A Concise History of Ireland. London: Thames and Hudson, 1972.

Cita MLA (9a ed.)

O'Brien, Máire, y Conor Cruise O'Brien. A Concise History of Ireland. Thames and Hudson, 1972.