Porter-Efron, R. (1989). Letting go of shame: Understanding how shame affects your life. Hazelden.
Citazione stile Chigago Style (17a edizione)Porter-Efron, Ronald. Letting Go of Shame: Understanding How Shame Affects Your Life. Minneapolis: Hazelden, 1989.
Citatione MLA (9a ed.)Porter-Efron, Ronald. Letting Go of Shame: Understanding How Shame Affects Your Life. Hazelden, 1989.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.