Παραπομπή APA

Kirkby,John. (1995). The earthscan reader in sustainable development. Earthscan Publications Ltd.

Παραπομπή Chicago Style

Kirkby,John. The Earthscan Reader in Sustainable Development. London: Earthscan Publications Ltd, 1995.

Παραπομπή MLA

Kirkby,John. The Earthscan Reader in Sustainable Development. Earthscan Publications Ltd, 1995.