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Jones, Paul R. (18 July 2013). "Justus Von Liebig, Eben Horsford and the Development of the Baking Powder Industry". Ambix. 40 (2): 65–74. doi:10.1179/amb.1993.40.2.65. PMID29185890.
Jones, Paul R. (18 July 2013). "Justus Von Liebig, Eben Horsford and the Development of the Baking Powder Industry". Ambix. 40 (2): 65–74. doi:10.1179/amb.1993.40.2.65. PMID29185890.