APA (7th ed.) Citation

(2005). Britannica discovery library: The world around us 4. Encyclopaedia Britannica,Inc.

Chicago Style (17th ed.) Citation

Britannica Discovery Library: The World Around Us 4. Chicago: Encyclopaedia Britannica,Inc, 2005.

MLA (9th ed.) Citation

Britannica Discovery Library: The World Around Us 4. Encyclopaedia Britannica,Inc, 2005.

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