Cita APA (7a ed.)

Selvini Palazzoli, M., & Prata, G. (1982). Snares in family therapy. [s.n.].

Cita Chicago Style (17a ed.)

Selvini Palazzoli, Mara, y Giuliana Prata. Snares in Family Therapy. [S.l.]: [s.n.], 1982.

Cita MLA (9a ed.)

Selvini Palazzoli, Mara, y Giuliana Prata. Snares in Family Therapy. [s.n.], 1982.