Παραπομπή σε μορφή APA (7η εκδ.)

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

Παραπομπή σε μορφή Chicago (17η εκδ.)

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

Παραπομπή σε μορφή MLA (8th εκδ.)

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