Παραπομπή σε μορφή APA (7η εκδ.)

Crump, A. (1991). Dictionary of environment and development: People, places, ideas and organizations. Earthscan Publications Ltd.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Crump, Andy. Dictionary of Environment and Development: People, Places, Ideas and Organizations. London: Earthscan Publications Ltd, 1991.

Παραπομπή σε μορφή MLA (8th εκδ.)

Crump, Andy. Dictionary of Environment and Development: People, Places, Ideas and Organizations. Earthscan Publications Ltd, 1991.