1. and Biotechnology's bitter harvest, Environmental Defense Fund, Biotechnology Working Group, New York (1990).
2. and Agricultural biotechnology: an environmental outlook, Tufts University, Medford, MA (1993).
3. and Herbicide-resistant crops, Comments from CAST, No 1991-1, Council for Agricultural Science and Technology, Ames, IA (1991).
4. (ed), Herbicide-resistant crops: agricultural, environmental, economic, regulation, and technical aspects, CRC Press, Boca Raton, FL (1996).