Cita APA (7th ed.)
Ryrie, W. (1999). First World, Third World (2nd ed.). Macmillan Press.
Cita Chicago (17th ed.)
Ryrie, William. First World, Third World. 2nd ed. Basingstoke: Macmillan Press, 1999.
Cita MLA (9th ed.)
Ryrie, William. First World, Third World. 2nd ed. Macmillan Press, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.