Bell, F. (1999). Geological hazards: Their assessment, avoidance and mitigation (3rd ed.). E. & FN Spon.
Citazione stile Chigago Style (17a edizione)Bell, F.G. Geological Hazards: Their Assessment, Avoidance and Mitigation. 3rd ed. London: E. & FN Spon, 1999.
Citatione MLA (9a ed.)Bell, F.G. Geological Hazards: Their Assessment, Avoidance and Mitigation. 3rd ed. E. & FN Spon, 1999.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.