APA-viite (7. p.)
Pifer, S., & O'Hanlon, M. E. (2012). The opportunity: Next steps in reducing nuclear arms. Brookings Institution Press.
Chicago-viite (17. p.)
Pifer, Steven, ja Michael E. O'Hanlon. The Opportunity: Next Steps in Reducing Nuclear Arms. Washington, D.C.: Brookings Institution Press, 2012.
MLA-viite (9. p.)
Pifer, Steven, ja Michael E. O'Hanlon. The Opportunity: Next Steps in Reducing Nuclear Arms. Brookings Institution Press, 2012.
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