APA
(1991). Journal of the Royal College of Physicians of London. London: Journal of Royal college of physicians of London.
Chicago
1991. Journal of the Royal College of Physicians of London. London: Journal of Royal college of physicians of London.
Harvard
(1991). Journal of the Royal College of Physicians of London. London: Journal of Royal college of physicians of London.
MLA
Journal of the Royal College of Physicians of London. London: Journal of Royal college of physicians of London. 1991.
