APA Style
The world book encyclopedia. (2006).
Chicago:
Worl Book.
Chicago Style
The world book encyclopedia.
Vol. 7.
Chicago:
Worl Book,
2006.
Text.
MLA Style
The world book encyclopedia.
Vol. 7.
Chicago:
Worl Book,
2006.
Text.
Turabian Style
The world book encyclopedia.
Chicago:
Worl Book,
2006.
Print.