Watzlawick, P., & weakland, J. H. (1974). Change: Principles of problem formation and problem resolution (ed.). W. W. Norton & company Inc..
Citação do estilo Chicago (17ª ed.)Watzlawick, Paul, e John H. weakland. Change: Principles of Problem Formation and Problem Resolution. ed. New York: W. W. Norton & company Inc., 1974.
Citação MLA (9ª ed.)Watzlawick, Paul, e John H. weakland. Change: Principles of Problem Formation and Problem Resolution. ed. W. W. Norton & company Inc., 1974.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.