APA (7th ed.) Citation

Stalker, P. (2007). A guide to countries of the world. Oxford University Press, Oxford.

Chicago Style (17th ed.) Citation

Stalker, Peter. A Guide to Countries of the World. New York: Oxford University Press, Oxford, 2007.

MLA (9th ed.) Citation

Stalker, Peter. A Guide to Countries of the World. Oxford University Press, Oxford, 2007.