APA (7th ed.) Citation

Wallerstein, I. M. (1989). The modern world-system. Academic Press.

Chicago Style (17th ed.) Citation

Wallerstein, Immanuel Maurice. The Modern World-system. New York ; San Francisco ; London: Academic Press, 1989.

MLA (9th ed.) Citation

Wallerstein, Immanuel Maurice. The Modern World-system. Academic Press, 1989.