Hecht, Jacqueline creator text ag continuing eng pp. 49-73 Based on papers presented at a seminar held at Pembroke College, University of Cambridge, august 1987; Population and Development Review, a suplement to volume 14, 1988 Teoria de la Población Socialismo Utopia Maltusianismo Moro, T Bacon, F Saint-Simon, C.-H., Conde de Sismondi, J. C. L. S. de Babeuf, G Buchez, P Pecqueur, C Blanc, L Leroux, P Proudhon, P. J Fourier, C Crecimiento Demografico AR-ReUNN 260701 20260702001655.0 200515 spa