1. Food and Environmental Protection Act, 1985. HMSO.
2. A.L. Asplin, Pesticides Industry Sales and Usage, 1994 and 1995 Market Estimates. US EPA Report No. 733-K-94-0011997, 1997.
3. Extensive and Updated Literature Study of the Toxicity and Ecotoxicity of Atrazine;Persoone,1991
4. AGROW, PANNA’S Online Resources, World Crop Protection News, 13 Dec. (1996), 14 and 28 Feb. (1997).
5. I. Gorse, Bilan des Ventes de Pesticides au Québec en 1995, Ministère de l’Environnement et Faune du Québec, Québec, Canada, Mars 1997.