Gaya APA
Huntington, Ellsworth. (1959).
Mainsprings Of Civilization .
New York:
The New American Library.
Gaya Chicago
Huntington, Ellsworth.
Mainsprings Of Civilization.
New York:
The New American Library,
1959.
Text.
Gaya MLA
Huntington, Ellsworth.
Mainsprings Of Civilization.
New York:
The New American Library,
1959.
Text.
Gaya Turabian
Huntington, Ellsworth.
Mainsprings Of Civilization.
New York:
The New American Library,
1959.
Print.