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Economic aspects
4
Agriculture
1
Agricultural credit
1
Cattle
1
Corn
1
Economic conditions
1
Education
1
Education and state
1
Educational equalization
1
Farms, Small
1
Feeding and feeds
1
Finance
1
Forests and forestry
1
Labor supply
1
Milk yield
1
Natievorming
1
Onderwijs
1
Pennisetum purpureum
1
Soil fertility
1
Soil management
1
Tree farms
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1由 Dewees, Peter Allen### CRL customization ### ?> ### Add publisher and desc details ### ?>
出版 1991England : University of Oxford, 1991.4 microfiches. -
2由 Närman, Anders### CRL customization ### ?> ### Add publisher and desc details ### ?>
出版 1995Göteborg, Sweden : Dept. of Human and Economic Geography, Göteborg University, 1995.vi, 299 p. : ill. ; 24 cm. -
3### CRL customization ### ?> ### Add publisher and desc details ### ?>[Wageningen : s.n., 2000?]252 p. : ill. ; 24 cm.
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4由 Mango, Nelson A. R.### CRL customization ### ?> ### Add publisher and desc details ### ?>
出版 2002c2002.xx, 322 p. : ill., maps ; 24 cm. -
5由 Odero-Ogwel, Lawi Andrew### CRL customization ### ?> ### Add publisher and desc details ### ?>
出版 1969University of London, England : 1969.v, 451 leaves : ill. -
6由 Heyer, Judith Ursula### CRL customization ### ?> ### Add publisher and desc details ### ?>
出版 1966University of London, England : 1966.1 microfilm reel ; 35 mm.