Peña, R. de la (1978) «Kennet Duncan e Ian Rutledge (comps.). Land and Labour in Latin America : Essays on the Development of Agrarian Capitalism in the Nineteenth and Twentieth centuries, Cambridge, Latin American Studies, num. 26, Londres, Cambridge University Press, 1977. 535 p»., Estudios Demográficos y Urbanos, 12(03), pp. 470–471. doi: 10.24201/edu.v12i03.397.