Gaya APA
Rickard, Graham. (1992).
Resources : Oil .
New York:
Thomson Learning.
Gaya Chicago
Rickard, Graham.
Resources : Oil.
New York:
Thomson Learning,
1992.
Text.
Gaya MLA
Rickard, Graham.
Resources : Oil.
New York:
Thomson Learning,
1992.
Text.
Gaya Turabian
Rickard, Graham.
Resources : Oil.
New York:
Thomson Learning,
1992.
Print.