Huarochiri: a Colonial Province Under Inca and Spanish Rule (Stanford: Stanford Univ. Press, 1984)
Essays in the Political, Economic and Social History of Colonial Latin America (Newark: Univ. of Delaware, 1982)
De Indio a campesino: cambios en la estructura social del Perú colonial (Lima: Instituto de Estudios Peruanos, 1974)
"The Crisis and Transformations of Invaded Societies, 1500-1580 -- Andean Area," Cambridge History of Native American Peoples ed. Stuart Schwartz & Frank Salomon (Cambridge: Cambridge Univ. Press, 2000)
"Resistencia y Adaptación: el gobierno colonial y las élites nativas," Allpanchis Phuturinga, 17-18 (Cuzco, 1981), 5-21
"Social Climbers: Changing Patterns of Mobility among the Indians of Colonial Peru," Hispanic American Historical Review, 1, no. 4 (1970), 645-664.