1987
“Desertification”. In Sustainability Issues In Agricultural Development: Proceedings Of The Seventh Agriculture Sector Symposium, 229-238. Washington, DC: World Bank. http://www.worldcat.org/oclc/15791230.
. 1987. “Farm Forestry”. In Sustainability Issues In Agricultural Development: Proceedings Of The Seventh Agriculture Sector Symposium, 211-222. Washington, DC: World Bank. http://www.worldcat.org/oclc/15791230.
. 1987. “Managing Natural Resources For Sustainability”. In Sustainability Issues In Agricultural Development: Proceedings Of The Seventh Agriculture Sector Symposium, 167-181. Washington, DC: World Bank. http://www.worldcat.org/oclc/925356016.
. 1987. “The Preservation Of Germplasm”. In Sustainability Issues In Agricultural Development: Proceedings Of The Seventh Agriculture Sector Symposium, 252-269. Washington, DC: World Bank. http://documents.worldbank.org/curated/en/686471468764390337/Sustainability-issues-in-agricultural-development-proceedings-of-the-seventh-agriculture-sector-symposium.
. 1987. “Some Thoughts On Economic Development, Sustainability, And The Environment”. In Sustainability Issues In Agricultural Development: Proceedings Of The Seventh Agriculture Sector Symposium, 371-382. Washington, DC: World Bank. http://www.worldcat.org/oclc/15791230.
. 1987. . 1987.