APA Style
World Book, Inc.. (2007).
The World Book Encyclopedia (2007 edition).
Chicago ::
World Book,.
Chicago Style
World Book, Inc..
The World Book Encyclopedia.
2007 edition
Chicago ::
World Book,,
2007.
print.
MLA Style
World Book, Inc..
The World Book Encyclopedia.
2007 edition
Chicago ::
World Book,,
2007.
print.
Turabian Style
World Book, Inc..
The World Book Encyclopedia.
2007 edition
Chicago ::
World Book,,
2007.
print.