APA Style
Levitt, Steven D, Dubner, Stephen J. (2006).
Freakonomics .
United Kingdom:
Penguin Group.
Chicago Style
Levitt, Steven D, Dubner, Stephen J.
Freakonomics.
United Kingdom:
Penguin Group,
2006.
Text.
MLA Style
Levitt, Steven D, Dubner, Stephen J.
Freakonomics.
United Kingdom:
Penguin Group,
2006.
Text.
Turabian Style
Levitt, Steven D, Dubner, Stephen J.
Freakonomics.
United Kingdom:
Penguin Group,
2006.
Print.