APA (7e ed.) Bronvermelding

Smith, K., & Petley, D. N. (2009). Environmental hazards: Ssessing risk and reducing disaster (Fifth edition.). Routledge.

Chicago (17e ed.) Bronvermelding

Smith, Keith, en David N. Petley. Environmental Hazards: Ssessing Risk and Reducing Disaster. Fifth edition. Milton Park: Routledge, 2009.

MLA (9e ed.) Bronvermelding

Smith, Keith, en David N. Petley. Environmental Hazards: Ssessing Risk and Reducing Disaster. Fifth edition. Routledge, 2009.