APA (7th ed.) Citation

O'Faoláin, S. (1939). DeValera. Penguin Books.

Chicago Style (17th ed.) Citation

O'Faoláin, Seán. DeValera. Harmondsworth, Middlesex: Penguin Books, 1939.

MLA (9th ed.) Citation

O'Faoláin, Seán. DeValera. Penguin Books, 1939.

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