APA (7th ed.) Citation

De Paor, L. (1971). Divided Ulster (2nd ed.). Penguin.

Chicago Style (17th ed.) Citation

De Paor, Liam. Divided Ulster. 2nd ed. Harmondsworth: Penguin, 1971.

MLA (8th ed.) Citation

De Paor, Liam. Divided Ulster. 2nd ed. Penguin, 1971.

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