Denemark, Robert A. “Review of ‘LEADING SECTORS AND WORLD POWERS: THE COEVOLUTION OF GLOBAL POLITICS AND ECONOMICS’ by George Modelsk:I and William R. Thompson”. Journal of World-Systems Research 3, no. 2 (August 26, 1997): 341–346. Accessed April 24, 2024. https://jwsr.pitt.edu/ojs/jwsr/article/view/104.