Cita APA (7a ed.)

Schulz, R., Heckhausen, J., & O'Brien, A. T. (1994). Control and the disablement process in the elderly. [s.n.].

Cita Chicago Style (17a ed.)

Schulz, Richard, Jutta Heckhausen, y Alison T. O'Brien. Control and the Disablement Process in the Elderly. [S.l.]: [s.n.], 1994.

Cita MLA (9a ed.)

Schulz, Richard, et al. Control and the Disablement Process in the Elderly. [s.n.], 1994.