APA (7th ed.) Zitazioa

Bion, W. R., & Bion, F. (2005). Cogitations (New extended ed.). Karnac Books.

Chicago Style (17th ed.) Zitazioa

Bion, Wilfred R., eta Francesca Bion. Cogitations. New extended ed. London: Karnac Books, 2005.

MLA (9th ed.) Zitazioa

Bion, Wilfred R., eta Francesca Bion. Cogitations. New extended ed. Karnac Books, 2005.