एपीए उद्धरण

Bergesen,Albert. (1983). Crisis in the world system. Sage Publications.

शिकागो स्टाइल उद्धरण

Bergesen,Albert. Crisis in the World System. London: Sage Publications, 1983.

एमएलए उद्धरण

Bergesen,Albert. Crisis in the World System. Sage Publications, 1983.