1. MIMS: Monthly index of medical specialities, Medical Publications, London ((published monthly)).
2. British National Formulary, no 6,1983
3. ABPI Data Sheet Compendium, 1983-84, Datapharm Publications, London.
4. British Pharmacopoeia, 1980 (and Addenda 1982 and 1983), HM Stationery Office, London.