Lieberman, D. J., & Pratt, S. (2010). Setting boundaries with difficult people: A survival guide for people pleasers (Unabridged.). Ascent Audio.
Cita Chicago Style (17a ed.)Lieberman, David J., y Sean Pratt. Setting Boundaries with Difficult People: A Survival Guide for People Pleasers. Unabridged. Rego Park: Ascent Audio, 2010.
Cita MLA (8a ed.)Lieberman, David J., y Sean Pratt. Setting Boundaries with Difficult People: A Survival Guide for People Pleasers. Unabridged. Ascent Audio, 2010.
Precaución: Estas citas no son 100% exactas.