APA Style

The world book Encyclopedia Q-R.16. (2007). Chicago: World Book.

Chicago Style

The world book Encyclopedia Q-R.16. . Chicago: World Book, 2007. Text.

MLA Style

The world book Encyclopedia Q-R.16. . Chicago: World Book, 2007. Text.

Turabian Style

The world book Encyclopedia Q-R.16. Chicago: World Book, 2007. Print.