APA (7th ed.) Citation

(1969). Britannica yearbook of science and the future. Encyclopedia Britannica.

Chicago Style (17th ed.) Citation

Britannica Yearbook of Science and the Future. Chicago: Encyclopedia Britannica, 1969.

MLA (9th ed.) Citation

Britannica Yearbook of Science and the Future. Encyclopedia Britannica, 1969.

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