Cita APA (7a ed.)

Sholevar, G. P., & Perkel, R. (1990). Family systems intervention and physical illness. [s.n.].

Cita Chicago Style (17a ed.)

Sholevar, G. Pirooz, y Robert Perkel. Family Systems Intervention and Physical Illness. [S.l.]: [s.n.], 1990.

Cita MLA (9a ed.)

Sholevar, G. Pirooz, y Robert Perkel. Family Systems Intervention and Physical Illness. [s.n.], 1990.