एपीए उद्धरण

Hopkins,Terence K. (1982). World systems analysis: Theory and methdology. Sage Publications.

शिकागो स्टाइल उद्धरण

Hopkins,Terence K. World Systems Analysis: Theory and Methdology. London: Sage Publications, 1982.

एमएलए उद्धरण

Hopkins,Terence K. World Systems Analysis: Theory and Methdology. Sage Publications, 1982.