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2. Martindale: The Extra Pharmacopoeia. 27th edition. London: The Pharmaceutical Press, 1977.
3. Formularium der Nederlandse Apothekers. The Hague: Koninklijke Nederlandse Maatschappij ter bevordering der Pharmacie, 1982.
4. Formularium Nationale v. Brussel: Algemene Pharmaceutische Bond, 1977, and addendum 1981.
5. The United States Pharmacopeia xx. Rockville: The United States Pharmacopeial Convention, 1980.