Cita APA (7a ed.)

Watzlawick, P., Weakland, J. H., & Fisch, R. (1974). Change; principles of problem formation and problem resolution ([1st ed.].). Norton.

Cita Chicago Style (17a ed.)

Watzlawick, Paul, John H. Weakland, y Richard Fisch. Change; Principles of Problem Formation and Problem Resolution. [1st ed.]. New York: Norton, 1974.

Cita MLA (9a ed.)

Watzlawick, Paul, et al. Change; Principles of Problem Formation and Problem Resolution. [1st ed.]. Norton, 1974.