1. Union of Concerned Scientists and Consumer Federation of America (2007) Comments on the USDA APHIS's draft programmatic environmental impact statement (EIS) on contemplated revisions of its biotechnology regulations (http://www.ucsusa.org/assets/documents/food_and_environment/UCS-CFA-DEIS-comments-final-9-11-07.pdf)
2. Aquaculture: a gateway for exotic species;Naylor;Science,2001
3. Protecting Public Health and the Environment: Implementing the Precautionary Principle,1999
4. Uncertain Peril: Genetic Engineering and the Future of Seeds;Cummings,2008
5. Seeds of concern;Brown;Am. Sci.,2001