APA (7th ed.) Citation

(1984). The World Around Us Vol. 27. Encyclopedia Britannica,Inc..

Chicago Style (17th ed.) Citation

The World Around Us Vol. 27. Chicago: Encyclopedia Britannica,Inc., 1984.

MLA (9th ed.) Citation

The World Around Us Vol. 27. Encyclopedia Britannica,Inc., 1984.

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