00363pab a2200109 454500008003600000100001900036245007100055362002900126650003800155650002500193773003500218180718b   xxu||||| |||| 00| 0 eng d  aKremer Michael  aPopulation growth and technological change: one million BC to 1990  a108(3) Aug 93, p.681-716  a Malthus, Thomas -- On Population  aPopulation -- Growth  aQuarterly Journal of Economics