Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.