1. Within and between field variability of residue data and sampling implications;Ambrus;Food Additives and Contaminants,2000
2. Nature's chemicals and synthetic chemicals: comparative toxicology;Ames;Proceedings of the National Academy of Science of the USA,1990
3. Anon 1999 The Pesticides (Maximum Residue Levels in Crops, Food and Feeding Stuffs) (England and Wales) Regulations 1999 http://www.legislation.gov.uk/uksi/1999/3483/contents/made
4. Co-operative facilitation of registrations of crop protection chemicals in fruits, vegetables and other speciality crops in the United States and Canada;Baron;The BCPC International Congress - Crop Science and Technology,2003