APA (7th ed.) Citation

Williams, B. (1993). Countries of the world. Kingfisher Books.

Chicago Style (17th ed.) Citation

Williams, Brian. Countries of the World. London: Kingfisher Books, 1993.

MLA (9th ed.) Citation

Williams, Brian. Countries of the World. Kingfisher Books, 1993.

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