Cita APA (7a ed.)

O'Connor, D. W., Pollitt, P. A., & Roth, M. (1990). Coexisting depression and dementia in a community survey of the elderly. [s.n.].

Cita Chicago Style (17a ed.)

O'Connor, D. W., P. A. Pollitt, y Martin Roth. Coexisting Depression and Dementia in a Community Survey of the Elderly. [S.l.]: [s.n.], 1990.

Cita MLA (9a ed.)

O'Connor, D. W., et al. Coexisting Depression and Dementia in a Community Survey of the Elderly. [s.n.], 1990.