APA Style
Gaarder, Jostein. (2015).
Sophie's world .
:
Orion Publishing Co.
Chicago Style
Gaarder, Jostein.
Sophie's world.
:
Orion Publishing Co,
2015.
Text.
MLA Style
Gaarder, Jostein.
Sophie's world.
:
Orion Publishing Co,
2015.
Text.
Turabian Style
Gaarder, Jostein.
Sophie's world.
:
Orion Publishing Co,
2015.
Print.