Gaya APA

Delury, G, E. (1987). World encyclopedia of political systems & parties, 2nd ed. I. Afghanistan-Luxembourg II. Madagascar-Zimbabwe . New York dsl: Facts on File.

Gaya MLA

Delury, George, E.. "World encyclopedia of political systems & parties, 2nd ed. I. Afghanistan-Luxembourg II. Madagascar-Zimbabwe ". New York dsl: Facts on File, 1987. Buku.