Gaya APA
Levitt, Steven D., Dubner, Stephen J.. (2005).
Freakonomics .
New York:
Harper Collins.
Gaya Chicago
Levitt, Steven D., Dubner, Stephen J..
Freakonomics.
New York:
Harper Collins,
2005.
Buku.
Gaya MLA
Levitt, Steven D., Dubner, Stephen J..
Freakonomics.
New York:
Harper Collins,
2005.
Buku.
Gaya Turabian
Levitt, Steven D., Dubner, Stephen J..
Freakonomics.
New York:
Harper Collins,
2005.
Buku.