The economics of small-scale irrigation with windmills in Sri Lanka : possibilities and limitations in comparison with conventional engine-driven pump sets / J.A.C. Vel and L.R. van Veldhuizen

http://data.bibliotheken.nl/id/nbt/p830010858 an entity of type: CreativeWork

The economics of small-scale irrigation with windmills in Sri Lanka : possibilities and limitations in comparison with conventional engine-driven pump sets / J.A.C. Vel and L.R. van Veldhuizen 
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The economics of small-scale irrigation with windmills in Sri Lanka : possibilities and limitations in comparison with conventional engine-driven pump sets 
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