APA (7th ed.) Citation

(2005). Britannica discovery library: Shapes 7. Encyclopaedia Britannica,Inc.

Chicago Style (17th ed.) Citation

Britannica Discovery Library: Shapes 7. Chicago: Encyclopaedia Britannica,Inc, 2005.

MLA (9th ed.) Citation

Britannica Discovery Library: Shapes 7. Encyclopaedia Britannica,Inc, 2005.

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