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how long will it take?
how long will it take?

"what would it take to accelerate fertility decline in the least developed countries? " documento sobre políticas de la división de población de las naciones unidas núm. 2009/1
"what would it take to accelerate fertility decline in the least developed countries? " united nations population division policy brief no. 2009/1

banco mundial (2005) attaining millennium development goals in sri lanka: how likely and what will it take to reduce poverty, child mortality and malnutrition, and to increase school enrollment and completion?
world bank (2005) attaining millennium development goals in sri lanka: how likely and what will it take to reduce poverty, child mortality and malnutrition, and to increase school enrollment and completion?

http://www.skepticalscience.com/the-oregon-petition-how-many-scientists-does-it-take-to-change-a-consensus.html
http://www.skepticalscience.com/an-online-resource-for-the-ipcc-4th-assessment-report.html