APA (7th ed.) Zitazioa

Elsom, D. (1996). Smog Alert: Managing Urban Air Quality. Earthscan Publications Ltd.

Chicago Style (17th ed.) Zitazioa

Elsom, Derek. Smog Alert: Managing Urban Air Quality. London: Earthscan Publications Ltd, 1996.

MLA (9th ed.) Zitazioa

Elsom, Derek. Smog Alert: Managing Urban Air Quality. Earthscan Publications Ltd, 1996.