por Watzlawick, Paul [autor] | Weakland, John H [autor] | Fisch, Richard, 1926- [autor] | Erickson, Milton H [prologuista] | Guéra Miralles, Alfredo [traductor] | Watzlawick, Paul. Change, principles of problem formation and problem resolution.
por Watzlawick, Paul [autor] | Weakland, John H [autor].
por Lerner, Harriet Goldhor [autor].
por Barranger, Jack, 1937- [autor] | Sotomayor Terán, Humberto [traductor] | Barranger, Jack, 1937-. Knowing when to quit.