@book{20104, author = {Walton, Peter and Sub-regional SDI management workshop (1996 : Nuku'alofa, Tonga)}, title = {Sub-regional SDI management workshop}, publisher = {Pacific Regional Agricultural Programme}, year = {1997}, address = {Suva}, note = {In collaboration with Technical Centre for Agricultural and Rural Cooperation, Tonga, Ministry of Agriculture and Forestry} }