Gaya APA
Boyle, T. C.. (2001).
A Friend of the Earth .
New York:
Penguin Group.
Gaya Chicago
Boyle, T. C..
A Friend of the Earth.
New York:
Penguin Group,
2001.
Text.
Gaya MLA
Boyle, T. C..
A Friend of the Earth.
New York:
Penguin Group,
2001.
Text.
Gaya Turabian
Boyle, T. C..
A Friend of the Earth.
New York:
Penguin Group,
2001.
Print.