Sam, Do Dinh
Shifting cultivation in Vietnam its social, economic and environment values relative to altermative land use = Luân canh ở Việt Nam Do Dinh Sam - Hanoi, Vietnam Land Use Working Group Ministry of Forestry 1994 Hanoi, Vietnam Forest Science Institute of Viet Nam 1994 - 66p. 30cm.
earth science
earth science forces causing land use changes
631.4 / S
Shifting cultivation in Vietnam its social, economic and environment values relative to altermative land use = Luân canh ở Việt Nam Do Dinh Sam - Hanoi, Vietnam Land Use Working Group Ministry of Forestry 1994 Hanoi, Vietnam Forest Science Institute of Viet Nam 1994 - 66p. 30cm.
earth science
earth science forces causing land use changes
631.4 / S