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.
Чикаго стиль цитування (17-те видання)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.
Стиль цитування MLA (8-ме видання)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.