Gaya APA
Burns, J, M. et al
(1989).
Government by the people
(
13th. ed.)
.
Englewood Cliffs, N.J:
Prentice Hall.
Gaya MLA
Burns, James, MacGregor. et al.
"Government by the people".
13th. ed.
Englewood Cliffs, N.J:
Prentice Hall,
1989.
Text.