The art of soap-making: a practical handbook of the manufacture of hard and soft soaps, toilet soaps, etc., including many new processes, and a chapter on the recovery of glycerine from waste leys Book Discussion
The art of soap-making: a practical handbook of the manufacture of hard and soft soaps, toilet soaps, etc., including many new processes, and a chapter on the recovery of glycerine from waste leys (Paperback)
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