Land evaluation for agricultural development: some explorations of land use syst
Beek, K.J.
Land evaluation for agricultural development: some explorations of land use syst - Wageningen 1978 - 333 p. - No. 23; Netherlands, Internati .
Land evaluation for agricultural development: some explorations of land use syst - Wageningen 1978 - 333 p. - No. 23; Netherlands, Internati .