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2. Quam, G.N., and Solomon, E.I. 1927 Some more facts about metals. The Milk Dealer, xvi, no. 5, 61, 62.
3. Okuyyama, Sobey 1927 The bottle cap not to blame. The Milk Dealer, xvi, no. 11, 45.
4. Metals in the construction of dairy equipment;Hunziker,1923
5. Hunziker, O.F., Cordes W.A., Nissen, B.H. 1929 Metals in dairy equipment. Metallic corrosion in milk products and its effect on flavor. Jour. Dairy Sci., xii, no. 2, 140–181.