OECD-Organisation for Economic Co-Operation and Development
2010-

Robert Prescott-Allen, International Development Research Centre, IUCN-The World Conservation Union, International Institute for Environment and Development, FAO-Food and Agriculture Organization of the United Nations
2001

ONU-United Nations, UNECE-United Nations Economic Commission for Europe, FAO-Food and Agriculture Organization of the United Nations, Agriculture and Timber Division, Timber Section
1995-

Food and Agriculture Organization of the United Nations
1993

J. C. Abbott, Service de la Commercialisation et du Crédit, Division des Services Agricoles
1987

FAO-Organisation des Nations Unies pour l'Alimentation et l'Agriculture, UNESCO-Organisation des Nations Unies pour l'Éducation, la Science et la Culture, ILO-Organisation Internationale du Travail
1981-1989

par A. J. Oliveira ; [para] FAO-Organisation des Nations Unies pour l'Alimentation et l'Agriculture
1963

Jorge d'Alarcão
1953