APA-referens (7:e uppl.)
Collier, P. (2008). The bottom: Why the poorest countries are failing and what can be done about it (ed.). Oxford University Press.
Chicago-referens (17:e uppl.)
Collier, Paul. The Bottom: Why the Poorest Countries Are Failing and What Can Be Done About It. ed. Oxford: Oxford University Press, 2008.
MLA-referens (9:e uppl.)
Collier, Paul. The Bottom: Why the Poorest Countries Are Failing and What Can Be Done About It. ed. Oxford University Press, 2008.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.