International Union of Forestry Research Organizations, Food and Agriculture Organization of the United Nations, International Conference and Workshop on Global Natural Resource Monitoring and Assessments--Preparing for the 21st Century, Lund, H. G., & Preto, G. (1990). Global natural resource monitoring and assessments-preparing for the 21st century: Proceedings of the international conference and workshop, September 24-30, 1989, Fondazione G. Cini, Isle of San Giorgio Maggiore, Venice, Italy. American Society for Photogrammetry and Remote Sensing.
Παραπομπή σε μορφή Chicago (17η εκδ.)International Union of Forestry Research Organizations, Food and Agriculture Organization of the United Nations, International Conference and Workshop on Global Natural Resource Monitoring and Assessments--Preparing for the 21st Century, H. Gyde Lund, και Giovanni Preto. Global Natural Resource Monitoring and Assessments-preparing for the 21st Century: Proceedings of the International Conference and Workshop, September 24-30, 1989, Fondazione G. Cini, Isle of San Giorgio Maggiore, Venice, Italy. Bethesda: American Society for Photogrammetry and Remote Sensing, 1990.
Παραπομπή σε μορφή MLA (9th εκδ.)International Union of Forestry Research Organizations, et al. Global Natural Resource Monitoring and Assessments-preparing for the 21st Century: Proceedings of the International Conference and Workshop, September 24-30, 1989, Fondazione G. Cini, Isle of San Giorgio Maggiore, Venice, Italy. American Society for Photogrammetry and Remote Sensing, 1990.