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1. Ecostrategies in theory and practice : farmers' perspectives on water nutrients and sustainability in low-resource a agriculture in the dri zone of Sri Lanka

by Sandell, Klas.

Material type: Text Text; Format: print ; Literary form: Not fiction Publisher: : , 1988Availability: Items available for loan: Main Library [Call number: 307.72 SAN] (1).

2. Ecostrategies in theory and practice : farmers perspectives on water nutrients and sustainability in low-resource agriculture in the dry zone of Sri Lanka

by Sandell , Klas.

Material type: Text Text; Format: print ; Literary form: Not fiction Publisher: Linkoping : University of Linkoping, 1988Availability: Items available for loan: Main Library [Call number: 333.7615095C SAN] (1).

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