Pynciau a Argymhellir O fewn eich chwiliad
Pynciau a Argymhellir O fewn eich chwiliad
Economic aspects
Environmental aspects
2
Agriculture
2
Social aspects
1
Agricultural ecology
1
Agricultural pollution
1
Drainage (afwatering)
1
Ethnoarchaeology
1
Huli (Papua New Guinean people)
1
Hydroelectric power plants
1
Land use, Rural
1
Landgebruik
1
Material culture
1
Nitrogen in agriculture
1
Planning
1
Subsurface drainage
1
Sweet potatoes
1
Water resources development
1
Wetland agriculture
1
Wetland conservation
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1gan Bolton, P. (Peter)### CRL customization ### ?> ### Add publisher and desc details ### ?>
Cyhoeddwyd 19831983.1 microfilm reel ; 35mm. -
2gan Jorjani, Hamid### CRL customization ### ?> ### Add publisher and desc details ### ?>
Cyhoeddwyd 1990[Wageningen, The Netherlands? : Landbouwuniversiteit te Wageningen?, 1990?]xxx, 231 p. : ill., maps ; 24 cm. -
3gan Ballard, Chris, 1963-### CRL customization ### ?> ### Add publisher and desc details ### ?>
Cyhoeddwyd 19951995.2 CD-ROMs. -
4gan Andréasson, Ing-Marie### CRL customization ### ?> ### Add publisher and desc details ### ?>
Cyhoeddwyd 1989Stockholm : Stockholm School of Economics, the Economic Research Institute, [1989]176 p. : ill. ; 25 cm. -
5gan Drake, Lars### CRL customization ### ?> ### Add publisher and desc details ### ?>
Cyhoeddwyd 1993Uppsala : Sveriges lantbruksuniversitet, Institutionen för ekonomi, 1993.vi, 191, 6 p. : ill. ; 24 cm.