por Miller, Susan, 1942- [autor] | Medrano Pizarro, Alejandra [traductor] | Miller, Susan, 1942-. Stay positive no matter what! : the top 40 ways to work and live in the Positive Zone.
por Yoon, Helen [autor] | Yoon, Helen. Daring to change, empowering yoursel to create the life you want | Salomón Ferrer, Montserrat [traductor].
por Levinstein, Raquel [autor].