The North Sea : : invisible decline? : a summary of environmental problems in the North Sea / / Paul Johnston, Monica Verbeek.

MLA

Johnston, Paul, and Monica Verbeek. The North Sea : Invisible Decline? : a Summary of Environmental Problems In the North Sea. Amsterdam: Greenpeace International, 1994.

APA

Johnston, P., & Verbeek, M. (1994). The North Sea : invisible decline? : a summary of environmental problems in the North Sea. Amsterdam: Greenpeace International.

Chicago

Johnston, Paul, and Monica Verbeek. The North Sea: Invisible Decline? : a Summary of Environmental Problems In the North Sea. Amsterdam: Greenpeace International, 1994.