Gaya APA
Burns, J, M. et al (1989).
Government by The People (Thirteenth edition).
N.J.: Prentice-Hall:
Englewood Cliffs.
Gaya MLA
Burns, James, McGregor. et al.
"Government by The People".
Thirteenth edition
N.J.: Prentice-Hall:
Englewood Cliffs,
1989.
Buku.