Animal Poison Control Center – www.aspca.org/site/PageServer?pagename=pro_apcc

Poisonous Plants of Kansas – www.vet.ksu.edu/depts/dmp/service/toxicology/ppk.htm

Household Products Database – http://householdproducts.nlm.nih.gov

Compendium of Pesticide Common Names – www.alanwood.net/pesticides