Gaya APA
Coyle, David Cushman. (1961).
The United States Political System And How It Works .
New York:
The New American Library.
Gaya Chicago
Coyle, David Cushman.
The United States Political System And How It Works.
New York:
The New American Library,
1961.
Text.
Gaya MLA
Coyle, David Cushman.
The United States Political System And How It Works.
New York:
The New American Library,
1961.
Text.
Gaya Turabian
Coyle, David Cushman.
The United States Political System And How It Works.
New York:
The New American Library,
1961.
Print.