Gunn, A. M. (2008). Encyclopedia of disasters: Environmental catastrophes and human tragedies. Greenwood.
Chicago Style aipamenaGunn, Angus M. Encyclopedia of Disasters: Environmental Catastrophes and Human Tragedies. Westport: Greenwood, 2008.
MLA aipamenaGunn, Angus M. Encyclopedia of Disasters: Environmental Catastrophes and Human Tragedies. Greenwood, 2008.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.