Duncan, K., Rutledge, I., & Harding, C. (1977). Land and labour in Latin America: Essays on the development of agrarian capitalism in the nineteenth and twentieth centuries. New York : Cambridge University Pr..

Duncan, Kenneth, Ian Rutledge, and Colin Harding. Land and Labour in Latin America: Essays on the Development of Agrarian Capitalism in the Nineteenth and Twentieth Centuries. New York : Cambridge University Pr., 1977.

Duncan, Kenneth, et al. Land and Labour in Latin America: Essays on the Development of Agrarian Capitalism in the Nineteenth and Twentieth Centuries. New York : Cambridge University Pr., 1977.