APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Wallerstein, Immanuel. The Modern World-system. San Diego [etc.]: Academic Press, 1989.

MLA (9th ed.) Citation

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

Warning: These citations may not always be 100% accurate.