Columbia subject headings:
Central planning--Turkey.
Chemical industry--Turkey.
Industrial policy--Turkey.
Petroleum chemicals industry--Turkey--Planning.
Petroleum chemicals industry--Turkey--Statistics.
Harvard subject headings:
Central planning--Turkey.
Chemical industry--Turkey.
Industrial policy--Turkey
Petroleum chemicals industry--Turkey--Planning.
Petroleum chemicals industry--Turkey--Statistics.
Princeton subject headings:
Petroleum chemicals industry--Turkey.
Petroleum chemicals.
Turkey--Economic policy.