Gaya APA
The American System Of Goverment. (1966).
New York:
.
Gaya Chicago
The American System Of Goverment.
.
New York:
,
1966.
Text.
Gaya MLA
The American System Of Goverment.
.
New York:
,
1966.
Text.
Gaya Turabian
The American System Of Goverment.
New York:
,
1966.
Print.