Gaya APA
Sylvia, W., L, C, M.
(1988).
The Changing Agenda : World Politics Since 1945
.
Boulder:
Westview Press.
Gaya MLA
Sylvia, Woodby.., L, Cottam., Martha.
"The Changing Agenda : World Politics Since 1945".
Boulder:
Westview Press,
1988.
Text.