Bryant, E. (1991). Natural Hazards. Univ. Pr.
Cita Chicago (17th ed.)Bryant, Edward. Natural Hazards. Cambridge: Univ. Pr, 1991.
Cita MLA (9th ed.)Bryant, Edward. Natural Hazards. Univ. Pr, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.