Cita APA (7th ed.)
Hellinger, B. To the Heart of the Matter: Brief Therapies. Carl-Auer-Systeme Verlag.
Cita Chicago (17th ed.)
Hellinger, Bert. To the Heart of the Matter: Brief Therapies. Heidelberg, Alemania: Carl-Auer-Systeme Verlag.
Cita MLA (9th ed.)
Hellinger, Bert. To the Heart of the Matter: Brief Therapies. Carl-Auer-Systeme Verlag.
Atenció: Aquestes cites poden no estar 100% correctes.