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Dirt the erosion of civilizations /
Опубликовано 2012An electronic book accessible through the World Wide Web; click to view
Электронный ресурс eКнига -
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3
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4
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6
Soil conservation assessing the national resources inventory.
Опубликовано 1986An electronic book accessible through the World Wide Web; click to view
Электронный ресурс eКнига -
7
Imperial gullies soil erosion and conservation in Lesotho /
Опубликовано 2005An electronic book accessible through the World Wide Web; click to view
Электронный ресурс eКнига -
8
Soil erosion and sediment redistribution in river catchments measurement, modelling, and management /
Опубликовано 2006An electronic book accessible through the World Wide Web; click to view
Электронный ресурс eКнига -
9
Dirt the erosion of civilizations /
Опубликовано 2007An electronic book accessible through the World Wide Web; click to view
Электронный ресурс eКнига