Fogel, Robert William. «Economic Growth, Population Theory, and Physiology: The Bearing of Long-Term Processes on the Making of Economic Policy». Revista Universidad EAFIT #DescubreyCrea 30, no. 94 (agosto 15, 2012): 89–90. Accedido diciembre 6, 2025. https://publicaciones.eafit.edu.co/index.php/revista-universidad-eafit/article/view/1409.