Citazione APA

Hopkins, T. K., & Wallerstein, I. (1982). World systems analysis: Theory and methodology. Sage publications.

Stile di citazione Chicago

Hopkins, Terence K., e Immanuel Wallerstein. World Systems Analysis: Theory and Methodology. London: Sage publications, 1982.

Citazione MLA

Hopkins, Terence K., e Immanuel Wallerstein. World Systems Analysis: Theory and Methodology. Sage publications, 1982.