Africa region population projections : 1990-91=1990- 91 edition / Patience W. Stephens... [et al.]

Africa region population projections : 1990-91=1990- 91 edition / Patience W. Stephens... [et al.] . - Washington : World Bank, 1991 . - LXXXIX, 133 p. : muito il. 28 cm . - (Policy, Research, and External Affairs., Working Papers; 598)
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