APA (7th ed.) Citation

Encyclopedia Britannica. (1989). Yearbook of science and the future 1989. Encyclopedia Britannica Inc.

Chicago Style (17th ed.) Citation

Encyclopedia Britannica. Yearbook of Science and the Future 1989. Chicago: Encyclopedia Britannica Inc, 1989.

MLA (9th ed.) Citation

Encyclopedia Britannica. Yearbook of Science and the Future 1989. Encyclopedia Britannica Inc, 1989.

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