Lawrence, K. S. “Review of "The World System and the Earth System: Global Socioenvironmental Change and Sustainability Since the Neolithic," By Alf Hornborg and Carole Crumley, Eds.”. Journal of World-Systems Research, Vol. 13, no. 2, Aug. 2007, pp. 223-6, doi:10.5195/jwsr.2007.351.