Gaya APA
LEVITT, STEVEN D. (2009).
Freakonomics: A Rogue Economist Explores the Hidden Side of Everything (pertama).
London:
Penguin Books.
Gaya Chicago
LEVITT, STEVEN D.
Freakonomics: A Rogue Economist Explores the Hidden Side of Everything.
pertama
London:
Penguin Books,
2009.
Text.
Gaya MLA
LEVITT, STEVEN D.
Freakonomics: A Rogue Economist Explores the Hidden Side of Everything.
pertama
London:
Penguin Books,
2009.
Text.
Gaya Turabian
LEVITT, STEVEN D.
Freakonomics: A Rogue Economist Explores the Hidden Side of Everything.
pertama
London:
Penguin Books,
2009.
Print.