Gaya APA
Gaarder, Jostein. (1997).
Sophie's World : A Novel About the History of Philosophy .
New York:
Berkley Books.
Gaya Chicago
Gaarder, Jostein.
Sophie's World : A Novel About the History of Philosophy.
New York:
Berkley Books,
1997.
Fiction.
Gaya MLA
Gaarder, Jostein.
Sophie's World : A Novel About the History of Philosophy.
New York:
Berkley Books,
1997.
Fiction.
Gaya Turabian
Gaarder, Jostein.
Sophie's World : A Novel About the History of Philosophy.
New York:
Berkley Books,
1997.
Fiction.