Παραπομπή APA

Doll, R., Peto, R., Boreham, J., & Sutherland, I. (2000). Smoking and dementia in male British doctors: Prospective study. British Medical Journal.

Παραπομπή Chicago Style

Doll, Richard, Richard Peto, Jillian Boreham, και Isabelle Sutherland. Smoking and Dementia in Male British Doctors: Prospective Study. British Medical Journal, 2000.

Παραπομπή MLA

Doll, Richard, Richard Peto, Jillian Boreham, και Isabelle Sutherland. Smoking and Dementia in Male British Doctors: Prospective Study. British Medical Journal, 2000.

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