Cita APA (7th ed.)

Kerkhof, A., & Akhnikh, S. (2010). Stop worrying: Get your life back on track with CBT. McGraw-Hill : Open University Press.

Cita Chicago (17th ed.)

Kerkhof, Ad, i Saida Akhnikh. Stop Worrying: Get Your Life Back on Track with CBT. Berkshire, England: McGraw-Hill : Open University Press, 2010.

Cita MLA (9th ed.)

Kerkhof, Ad, i Saida Akhnikh. Stop Worrying: Get Your Life Back on Track with CBT. McGraw-Hill : Open University Press, 2010.