APA (7th ed.) Citation

Denemark, R. A., & Denemark, R. A. (2000). World system history: The social science of long-term change. Routledge.

Chicago Style (17th ed.) Citation

Denemark, Robert A., and Robert A.;Friedman Denemark. World System History: The Social Science of Long-term Change. Routledge, 2000.

MLA (9th ed.) Citation

Denemark, Robert A., and Robert A.;Friedman Denemark. World System History: The Social Science of Long-term Change. Routledge, 2000.

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