Columbia subject headings:
Agriculture and state--OECD countries.
Environmental policy--OECD countries.
Rural development--Government policy--OECD countries.
Harvard subject headings:
Agriculture and state--Environmental aspects--OECD countries.
Agriculture and state--OECD countries.
Environmental policy--OECD countries
Rural development--Government policy--OECD countries.
Princeton subject headings:
Agricultural ecology--Europe.
Agriculture--Environmental aspects--Europe.