एपीए उद्धरण

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

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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