1. World population change: a long-range perspective;El-Badry;Ambio,1992
2. Food security and nutrition, 1971–91;Kennedy;Food Policy,1992
3. US Grain Imports by Developing Countries;Vocke,1988
4. Towards a New Agricultural Revolution: Research, Technology Transfer, and Application for Food Security in Africa,1991
5. Food security and nutrition, 1971–91;Kennedy;Food Policy,1992