Gaya APA
Woll, Peter. (1989).
American government the core .
New York:
McGraw-Hill, Inc.
Gaya Chicago
Woll, Peter.
American government the core.
New York:
McGraw-Hill, Inc,
1989.
Text.
Gaya MLA
Woll, Peter.
American government the core.
New York:
McGraw-Hill, Inc,
1989.
Text.
Gaya Turabian
Woll, Peter.
American government the core.
New York:
McGraw-Hill, Inc,
1989.
Print.