Yazar
Christine Haugen
3 cilt bulundu.
Cilt sonuçları
Directory of selected tropical forestry journals and newsletters
Christine Haugen · Food and Agriculture Organization of the United Nations
129 sayfa · 1993
Periodicals / Bibliography / Forests and forestry
Multipurpose tree species research for small farms
Christine Haugen · International Development Research Centre of Canada
217 sayfa · 1990
Small Farms / Congresses / Multipurpose trees
Keeping It Green
Mark C. Trexler, Christine Haugen · World Resources Institute
75 sayfa · 1995
Global warming / Tropical crops