Columbia subject headings:
Insecticides--Environmental aspects--United States.
Insecticides--Toxicology--United States.
Pesticides--Environmental aspects--United States.
Pesticides--Toxicology--United States.
Harvard subject headings:
Insecticides--Environmental aspects--United States.
Insecticides--Toxicology--United States.
Pesticides--Environmental aspects--United States
Pesticides--Toxicology--United States.
Princeton subject headings:
Insecticides--Environmental aspects--United States.
Insecticides--Toxicology--United States.
Pesticides--Environmental aspects--United States.
Pesticides--Toxicology--United States.