Curtis, M. (1978). Comparative government and politics: An introductory essay in political science (2d ed.). Harper & Row.
Chicago Style (17th ed.) ZitazioaCurtis, Michael. Comparative Government and Politics: An Introductory Essay in Political Science. 2d ed. New York: Harper & Row, 1978.
MLA (9th ed.) ZitazioaCurtis, Michael. Comparative Government and Politics: An Introductory Essay in Political Science. 2d ed. Harper & Row, 1978.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.