Olga Naidenko, Rebecca Sutton, Jane Houlihan. “High Levels of Toxic Industrial Chemicals Contaminate Cats And Dogs.” Environmental Working Group (EWG), 17 April 2008, www.ewg.org/research/polluted-pets#.WfvEq4U45l9.
Olga Naidenko, Rebecca Sutton, Jane Houlihan. “High Levels of Toxic Industrial Chemicals Contaminate Cats And Dogs.” Environmental Working Group (EWG), 17 April 2008, www.ewg.org/research/polluted-pets#.WfvEq4U45l9.