Cita APA (7a ed.)

Ludlam, M., & Nyberg, V. (2007). Couple attachments: Theoretical and clinical studies (First edition.). Karnac.

Cita Chicago Style (17a ed.)

Ludlam, Molly, y Viveka Nyberg. Couple Attachments: Theoretical and Clinical Studies. First edition. London ; New York: Karnac, 2007.

Cita MLA (9a ed.)

Ludlam, Molly, y Viveka Nyberg. Couple Attachments: Theoretical and Clinical Studies. First edition. Karnac, 2007.