Citazione Stile APA (7a Edizione)

(1989). The world's worst disasters of the twentieth century. Octopus Books.

Citazione stile Chigago Style (17a edizione)

The World's Worst Disasters of the Twentieth Century. London: Octopus Books, 1989.

Citatione MLA (9a ed.)

The World's Worst Disasters of the Twentieth Century. Octopus Books, 1989.