APA aipamena

Bostrom, N., & Nick Bostrom; Milan M. Cirkovic. (2008). Global catastrophic risks. Oxford,New York: Oxford University Press.

Chicago Style aipamena

Bostrom, Nick, và Nick Bostrom; Milan M. Cirkovic. Global Catastrophic Risks. Oxford,New York: Oxford University Press, 2008.

MLA aipamena

Bostrom, Nick, và Nick Bostrom; Milan M. Cirkovic. Global Catastrophic Risks. Oxford,New York: Oxford University Press, 2008.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.