por Segal, Lynn [autor] | Watzlawick, Paul [prologuista] | Meler-Orti, Ferran [traductor] | Segal, Lynn. Dream of reality.
por Fisch, Richard, 1926- [autor] | Segal, Lynn [autor] | Weakland, John H [autor] | Iglesias, Juan Andrés [traductor] | Fisch, Richard, 1926-. Tactics of change.