Dyfyniad APA

Andersen, S. O., & Sarma. K. Madhava. (2004). Protecting the ozone layer: The United Nations History. Earthscan India.

Dyfyniad Arddull Chicago

Andersen, Stephen O., and Sarma. K. Madhava. Protecting the Ozone Layer: The United Nations History. New Delhi: Earthscan India, 2004.

Dyfyniad MLA

Andersen, Stephen O., and Sarma. K. Madhava. Protecting the Ozone Layer: The United Nations History. Earthscan India, 2004.

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