1. Research returns redux: a meta-analysis of returns from agricultural R&D;Alston;Australian Journal of Agricultural and Resource Economics,2000
2. Agroecology: a new research and development paradigm for world agriculture;Altieri;Agriculture, Ecosystems, and Environment,1989
3. Agroecology: The Science of Sustainable Agriculture;Altieri,1995
4. Anonymous, 2003. Code of Sustainable Winegrowing Practices Self-Assessment Workbook. California Association of Winegrape Growers, and the Wine Institute, San Francisco, CA.
5. The present and future of the international wine industry;Bisson;Nature,2002