Nicholls, Y. I. (1973). Source book: Emergence of proposals for recompensing developing countries for maintaining environmental quality. International Union for Conservation of Nature and Natural Resources.
Cita Chicago (17th ed.)Nicholls, Yvonne I. Source Book: Emergence of Proposals for Recompensing Developing Countries for Maintaining Environmental Quality. Switzerland: International Union for Conservation of Nature and Natural Resources, 1973.
Cita MLA (9th ed.)Nicholls, Yvonne I. Source Book: Emergence of Proposals for Recompensing Developing Countries for Maintaining Environmental Quality. International Union for Conservation of Nature and Natural Resources, 1973.
Atenció: Aquestes cites poden no estar 100% correctes.