Columbia subject headings:
Farms, Small--Government policy--United States.
Groundwater--Pollution--Law and legislation--United States.
Pesticides--Environmental aspects--United States.
Pesticides--Law and legislation--United States.
Harvard subject headings:
Farms, Small--Government policy--United States.
Groundwater--Pollution--Law and legislation--United States.
Pesticides--Environmental aspects--United States
Pesticides--Law and legislation--United States
Princeton subject headings:
Farms, Small--Government policy--United States.
Groundwater--Pollution--Law and legislation--United States.
Pesticides--Environmental aspects--United States.
Pesticides--Law and legislation--United States.