APA-viite (7. p.)

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

Chicago-viite (17. p.)

Keller, Edward A., Duane E. DeVecchio, ja Robert H. Blodgett. Natural Hazards: Earth's Processes as Hazards, Disasters, and Catastrophes. 3rd ed.

MLA-viite (8. p.)

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