Columbia subject headings:
Environmental degradation--Asia, Central.
Environmental degradation--Black Sea Region.
Environmental policy--Asia, Central.
Environmental policy--Black Sea Region.
Harvard subject headings:
Environmental degradation--Asia, Central--Congresses.
Environmental degradation--Black Sea Region--Congresses.
Environmental policy--Asia, Central--Congresses.
Environmental policy--Black Sea Region--Congresses.
Medicinal plants--Black Sea Region.
Princeton subject headings:
Botanical drug industry--Black Sea Region--Congresses.
Botanical drug industry--Turkey--Congresses.
Environmental degradation--Asia, Central--Congresses.
Environmental degradation--Black Sea Region--Congresses.
Environmental policy--Asia, Central--Congresses.
Environmental policy--Black Sea Region--Congresses.
Medicinal plants--Black Sea Region--Congresses.
Medicinal plants--Turkey--Congresses.