APA (7th ed.) Citation

Crampton, R. J. (2007). Bulgaria. Oxford University Press.

Chicago Style (17th ed.) Citation

Crampton, R. J. Bulgaria. Oxford: Oxford University Press, 2007.

MLA (9th ed.) Citation

Crampton, R. J. Bulgaria. Oxford University Press, 2007.

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