Chan, M. K., & González-Richmond, C. D. (1976). <em>Crisis and Prosperity in Sung China</em>, editado por John Winthrop Haeger. (Tucson: University of Arizona Press, 1975), pp. xv, 264. Estudios de Asia y África, 11(1), 141–146. https://doi.org/10.24201/eaa.v11i1.e412