Water-resource and land-use issues
Calder I.R.
Water-resource and land-use issues - Colombo International Water Management Institute 1998 - v , 24 p. 28cm.
9290903619
Natural resources
Water resource
Natural resources - Water
Land use
333.91 / CAL
Water-resource and land-use issues - Colombo International Water Management Institute 1998 - v , 24 p. 28cm.
9290903619
Natural resources
Water resource
Natural resources - Water
Land use
333.91 / CAL