JOURNAL OF HOKKAIDO UNIVERSITY. 1998, 27: 11–34 [2024-05-14]. (原始内容存档 (PDF)于2024-05-29). The International Institute for Industrial Environmental Economics
Effectiveness and Social/Environmental Impacts of Irrigation Projects: a Review (PDF), In: Annual Report 1988 of the International Institute for Land Reclamation
wide range ofenvironmental protection areas, very few of these standards are innovative, most of which being copied from previous US agreements, and that