Agenda 21: Earth's action plan. The Commission on Environmental Law of IUCN-The World conservation Union.
Style de citation Chicago (17e éd.)Agenda 21: Earth's Action Plan. New York: The Commission on Environmental Law of IUCN-The World conservation Union.
Style de citation MLA (9e éd.)Agenda 21: Earth's Action Plan. The Commission on Environmental Law of IUCN-The World conservation Union.
Attention : ces citations peuvent ne pas être correctes à 100%.