Cita APA (7th ed.)

Michael Biggs, M., & Hedström, P. (2009). Self-Fulfilling Prophecies. Oxford University Press.

Cita Chicago (17th ed.)

Michael Biggs, M., i P. Hedström. Self-Fulfilling Prophecies. Oxford University Press, 2009.

Cita MLA (9th ed.)

Michael Biggs, M., i P. Hedström. Self-Fulfilling Prophecies. Oxford University Press, 2009.