Gaya APA
Roskin, Michael G.. (1991).
Political science : an introduction .
Englewood Cliffs, NJ:
Prentice-Hall.
Gaya Chicago
Roskin, Michael G..
Political science : an introduction.
Englewood Cliffs, NJ:
Prentice-Hall,
1991.
Text.
Gaya MLA
Roskin, Michael G..
Political science : an introduction.
Englewood Cliffs, NJ:
Prentice-Hall,
1991.
Text.
Gaya Turabian
Roskin, Michael G..
Political science : an introduction.
Englewood Cliffs, NJ:
Prentice-Hall,
1991.
Print.