Commonwealth Secretariat. Economic Affairs Division. (1991). Sustainable development: An imperative for environmental protection : report by a group of experts on environmental concerns and the Commonwealth. Economic Affairs Division, Commonwealth Secretariat.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Commonwealth Secretariat. Economic Affairs Division. Sustainable Development: An Imperative for Environmental Protection : Report by a Group of Experts on Environmental Concerns and the Commonwealth. London: Economic Affairs Division, Commonwealth Secretariat, 1991.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)Commonwealth Secretariat. Economic Affairs Division. Sustainable Development: An Imperative for Environmental Protection : Report by a Group of Experts on Environmental Concerns and the Commonwealth. Economic Affairs Division, Commonwealth Secretariat, 1991.