A general treatise on the manufacture of soap, by professor H. Dussauce (1869) , από το πανεπιστήμιο του Τορόντο
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The Art of Soap-making: A Practical Handbook of the Manufacture of Hard and Soft Soaps, Toilet, by Alexander Watt (1896)
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Soap-making manual; a practical handbook on the raw materials, their manipulation, analysis and control in the modern soap plant (1922), by Thomssen, Edgar George,
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The production and treatment of vegetable oils : including chapters on the refining of oils, the hydrogenation of oils, the generation of hydrogen, soap making, the recovery and refining of glycerine, and the splitting of oils (1920), Chalmers, Thomas Wightman
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