Michael Biggs, M., & Hedström, P. (2009). Self-Fulfilling Prophecies. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Michael Biggs, M., agus P. Hedström. Self-Fulfilling Prophecies. Oxford University Press, 2009.
Lua MLA (9ú heag.)Michael Biggs, M., agus P. Hedström. Self-Fulfilling Prophecies. Oxford University Press, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.