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Resource: Slovak Agricultural Library (SAL) - SAL Online Catalogue
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Author Sysno/Doc.kind = "^spu_us_auth 0140427 xkni^"
- Are there ecological limits to population? / Nathan Keyfitz . Laxenburg : Intern. Inst. for Applied Systems Analysis , 1993 . 16 s . ISBN 3-7045-0122-0 . [1, of that borrowed 0]
- Population and development within the ecosphere: One view of the literature / Nathan Keyfitz . Laxenburg : International Inst. for applied systems analysis , 1991 . 38 s . [1, of that borrowed 0]