referencia
DEMOGRAPHIC YEARBOOK 2001 = ANNUAIRE DEMOGRAPHIQUE 2001 / ONU .- New York: ONU , 2003 .- 1vol; 748pp; 28cms .-(Department of Economic and Social Affairs) .- ISBN 92-1-051094-1 .-
Signatura: REF-1/ONU/DEM/2001 ( referencia )