共 50 条
- [41] The United-Nations-Organization, world agriculture and the world food supply PENSEE, 1997, (310): : 131 - 136
- [42] Perspectives on rangeland development - the Food and Agriculture Organization of the United Nations (FAO) PEOPLE AND RANGELANDS BUILDING THE FUTURE, VOLS 1 AND 2, 1999, : 160 - 165
- [48] UNITED-NATIONS REGIONAL CARTOGRAPHIC CONFERENCE FOR AFRICA PROFESSIONAL GEOGRAPHER, 1964, 16 (02): : 49 - 50