APA Style
Maas, Peter. (2009).
Crude world : the violent twilight of oil .
London:
Penguin Books.
Chicago Style
Maas, Peter.
Crude world : the violent twilight of oil.
London:
Penguin Books,
2009.
Text.
MLA Style
Maas, Peter.
Crude world : the violent twilight of oil.
London:
Penguin Books,
2009.
Text.
Turabian Style
Maas, Peter.
Crude world : the violent twilight of oil.
London:
Penguin Books,
2009.
Print.