Columbia subject headings:
Harvard subject headings:
Landscape protection--Europe--Congresses.
Nature conservation--Europe--Management--Congresses.
Rural development--Environmental aspects--Europe--Congresses.
Wildlife conservation--Europe--Congresses.
Princeton subject headings:
Land use--Europe--Management--Congresses.
Landscape protection--Europe--Congresses.
Nature conservation--Europe--Management--Congresses.
Rural development--Europe--Environmental aspects--Congresses.