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Bongaarts, J.

The fertility impact of traditional and changing childspacing practices in tropical Africa. - Washington-US : United States Agency for International Development, 1981. - página 56 : ilustraciones blanco y negro - Trimestral - Vol.9, no.2 (Jul. 1981) - A.I.D. research & development abstracts ; no.2 . - United States Agency for International Development. .

Artículo dentro de: Population-family planning. Sumarios de investigación.