Cita APA (7th ed.)

Keller, E. A., DeVecchio, D. E., & Blodgett, R. H. (2012). Natural hazards: Earth's processes as hazards, disasters, & catastrophes (3rd ed.). Prentice Hall.

Cita Chicago (17th ed.)

Keller, Edward A., Duane Edward DeVecchio, i Robert H. Blodgett. Natural Hazards: Earth's Processes as Hazards, Disasters, & Catastrophes. 3rd ed. Boston: Prentice Hall, 2012.

Cita MLA (9th ed.)

Keller, Edward A., et al. Natural Hazards: Earth's Processes as Hazards, Disasters, & Catastrophes. 3rd ed. Prentice Hall, 2012.