Columbia subject headings:
Forests and forestry--Turkey--Congresses.
Nature conservation--Turkey--Congresses.
Nature--Congresses.
Harvard subject headings:
Forests and forestry--Turkey--Congresses.
Nature conservation--Turkey--Congresses.
Nature--Congresses.
Princeton subject headings:
Forests and forestry--Turkey--Congresses.
Nature conservation--Turkey--Congresses.
Nature--Congresses.