[Problems of world population:  what do the numbers mean?].
Van Leusden
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D003247:Conservation of Natural Resources; D003710:Demography; D004467:Economics; D004641:Emigration and Immigration; D004651:Employment; D004777:Environment; D005523:Food Supply; D005544:Forecasting; D011153:Population; D011157:Population Dynamics; D012106:Research; D012922:Social Change; D012923:Social Class; D012959:Socioeconomic Factors; D013223:Statistics as Topic
Demographic Aging; Demographic Factors; Economic Development; Economic Factors; Employment Status; Environment; Estimation Technics; Food Supply; Migration; Natural Resources; Population; Population Dynamics; Population Projection; Research Methodology; Social Development; Socioeconomic Factors; Socioeconomic Status; World