Megersa, S. 2015. The Modern World-System IV: Centrist Liberalism Triumphant, 1789-1914. By Immanuel Wallerstein. University of California Press, 2011. xvii, 377pp. Bibliography. Index. Ethiopian Journal of Social Sciences. 1, 1 (May 2015). DOI:https://doi.org/10.20372/ejss.v1i1.58.