APA (7th ed.) Citation

(1997). The 1997 World Book year book: The annual supplement to the World Book encyclopedia : a review of the events of 1996. World Book.

Chicago Style (17th ed.) Citation

The 1997 World Book Year Book: The Annual Supplement to the World Book Encyclopedia : A Review of the Events of 1996. London: World Book, 1997.

MLA (9th ed.) Citation

The 1997 World Book Year Book: The Annual Supplement to the World Book Encyclopedia : A Review of the Events of 1996. World Book, 1997.