Cita APA (7a ed.)

Izal, M., & Montorio, I. (1993). Adaptation of the Geriatric Depression Scale in Spain: A preliminary study. [s.n.].

Cita Chicago Style (17a ed.)

Izal, María, y Ignacio Montorio. Adaptation of the Geriatric Depression Scale in Spain: A Preliminary Study. [S.l.]: [s.n.], 1993.

Cita MLA (9a ed.)

Izal, María, y Ignacio Montorio. Adaptation of the Geriatric Depression Scale in Spain: A Preliminary Study. [s.n.], 1993.