APA
(1995). Protecting our green earth : how to manage global warming through environmentally sound farming and preservation of the world´s forests. Bonn: Economica Verlag.
Chicago
1995. Protecting our green earth : how to manage global warming through environmentally sound farming and preservation of the world´s forests. Bonn: Economica Verlag.
Harvard
(1995). Protecting our green earth : how to manage global warming through environmentally sound farming and preservation of the world´s forests. Bonn: Economica Verlag.
MLA
Protecting our green earth : how to manage global warming through environmentally sound farming and preservation of the world´s forests. Bonn: Economica Verlag. 1995.