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Population and development : the search for selective interventions
Ridker, Ronald G. (ed.) - 1976
Persistent link: https://www.econbiz.de/10013532555
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Population, resources, and the environment
Ridker, Ronald Gene (contributor) - 1972
Persistent link: https://www.econbiz.de/10000328706
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Resource and amenity implications of population changes
Ridker, Ronald G. - In: The American economic review 64 (1974) 2, pp. 33-38
Persistent link: https://www.econbiz.de/10003662264
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Population and development : the search for selective interventions
Ridker, Ronald G. (contributor) - 1976
Persistent link: https://www.econbiz.de/10004664207