Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
International Union for Conservation of Nature and Natural Resources, Environmental Policy and Law Papers no. 5: Source book: Emergence of Proposals for Recompensing Developing Countries for Maintaining Environmental Quality; and no. 6: Financing Environmental Measures in Developing Countries: The Principle of Additionality; 1973 and 1974, 142 and 54 pp.