Cita APA

Biggins, C. A., Boyd, J. L., Harrop, F. M., Madeley, P., Mindham, R. H., Randall, J. I., & Spokes, E. G. (1992). A controlled, longitudinal study of dementia in Parkinson's disease.

Chicago Style Citation

Biggins, C A., J L. Boyd, F M. Harrop, P. Madeley, R H. Mindham, J I. Randall, i E G. Spokes. A Controlled, Longitudinal Study of Dementia in Parkinson's Disease. 1992.

Cita MLA

Biggins, C A., et al. A Controlled, Longitudinal Study of Dementia in Parkinson's Disease. 1992.