Cita APA

Andersen, S. O. (2002). Protecting the ozone layer. London: Earthscan Publications Ltd.

Chicago Style Citation

Andersen, Stephen O. Protecting the Ozone Layer. London: Earthscan Publications Ltd, 2002.

Cita MLA

Andersen, Stephen O. Protecting the Ozone Layer. London: Earthscan Publications Ltd, 2002.

Atenció: Aquestes cites poden no estar 100% correctes.