por Harris, Godfrey, 1937- [autor] | Harris, Godfrey, 1937-. Courting Failure. A path to Success | Harris, Kennith L [autor] | Salomón Ferrer, Montserrat [traductor].
por Yoon, Helen [autor] | Yoon, Helen. Daring to change, empowering yoursel to create the life you want | Salomón Ferrer, Montserrat [traductor].