APA (7th ed.) Zitazioa

Smith, K., & Petley, D. N. (2009). Environmental Hazards: Assessing risk and reducing disaster (5th ed.). Routledge.

Chicago Style (17th ed.) Zitazioa

Smith, Keith, eta David N. Petley. Environmental Hazards: Assessing Risk and Reducing Disaster. 5th ed. London: Routledge, 2009.

MLA (9th ed.) Zitazioa

Smith, Keith, eta David N. Petley. Environmental Hazards: Assessing Risk and Reducing Disaster. 5th ed. Routledge, 2009.