Gaya APA
LADD, Everett Carll. (1989).
The American Polity : the People and Their Government (3rd.ed).
New York:
W.W. Norton Company Inc.
Gaya Chicago
LADD, Everett Carll.
The American Polity : the People and Their Government.
3rd.ed
New York:
W.W. Norton Company Inc,
1989.
.
Gaya MLA
LADD, Everett Carll.
The American Polity : the People and Their Government.
3rd.ed
New York:
W.W. Norton Company Inc,
1989.
.
Gaya Turabian
LADD, Everett Carll.
The American Polity : the People and Their Government.
3rd.ed
New York:
W.W. Norton Company Inc,
1989.
.