| 其他書名 | Report of the CAgM Working Group on the Assessment of Drought |
| 出版 | Secretariat of the World Meteorological Organization, 1975 |
| 主題 | Nature / Natural Disasters |
| ISBN | 92631039259789263103925 |
| URL | http://books.google.com.hk/books?id=bpfNAAAAMAAJ&hl=&source=gbs_api |