APA (7th ed.) Citation

Rowan, A. (1979). North West Ulster: The counties of Londonderry, Donegal, Fermanagh, and Tyrone. Penguin Books.

Chicago Style (17th ed.) Citation

Rowan, Alistair. North West Ulster: The Counties of Londonderry, Donegal, Fermanagh, and Tyrone. Harmondsworth [u.a.]: Penguin Books, 1979.

MLA (9th ed.) Citation

Rowan, Alistair. North West Ulster: The Counties of Londonderry, Donegal, Fermanagh, and Tyrone. Penguin Books, 1979.