Gaya APA
The Extreme Future: The Top That Will Reshape The World In The Next 20 Years. (2007).
New York:
Penguin Group.
Gaya Chicago
The Extreme Future: The Top That Will Reshape The World In The Next 20 Years.
.
New York:
Penguin Group,
2007.
.
Gaya MLA
The Extreme Future: The Top That Will Reshape The World In The Next 20 Years.
.
New York:
Penguin Group,
2007.
.
Gaya Turabian
The Extreme Future: The Top That Will Reshape The World In The Next 20 Years.
New York:
Penguin Group,
2007.
.