APA Style
HELM, DIETER. (1991).
ECONOMIC POLICY TOWARDS THE ENVIRONMENT .
Cambridge, Mass:
Blackwell Publishing.
Chicago Style
HELM, DIETER.
ECONOMIC POLICY TOWARDS THE ENVIRONMENT.
Cambridge, Mass:
Blackwell Publishing,
1991.
Text.
MLA Style
HELM, DIETER.
ECONOMIC POLICY TOWARDS THE ENVIRONMENT.
Cambridge, Mass:
Blackwell Publishing,
1991.
Text.
Turabian Style
HELM, DIETER.
ECONOMIC POLICY TOWARDS THE ENVIRONMENT.
Cambridge, Mass:
Blackwell Publishing,
1991.
Print.