APA Style
Gaarder, Jostein. (1995).
Sophie's World .
USA:
Berkley Books.
Chicago Style
Gaarder, Jostein.
Sophie's World.
USA:
Berkley Books,
1995.
Text.
MLA Style
Gaarder, Jostein.
Sophie's World.
USA:
Berkley Books,
1995.
Text.
Turabian Style
Gaarder, Jostein.
Sophie's World.
USA:
Berkley Books,
1995.
Print.