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2. Anon., Bull. Imp. Inst. 20:5 (1922).
3. Anon., Chem. Abstr. 16:3224 (1922).
4. IUPAC, Standard Methods for Analysis of Oils, Fats, and Derivatives, IUPAC, 6th edn., 1979, p. 96.
5. Anon., JAOCS 45:103 (1968).