APA (7th ed.) Citation

O'Faoláin, S. (1939). De Valera.

Chicago Style (17th ed.) Citation

O'Faoláin, Seán. De Valera. London, 1939.

MLA (9th ed.) Citation

O'Faoláin, Seán. De Valera. 1939.

Warning: These citations may not always be 100% accurate.