Dyfyniad APA

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.

Dyfyniad Arddull Chicago

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.

Dyfyniad MLA

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.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.