Hurst, G. H. Soaps: A Practical Manual of the Manufacture of Domestic, Toilet and Other Soaps.. Nabu Press.
Chicago-viite (17. p.)Hurst, George Henry. Soaps: A Practical Manual of the Manufacture of Domestic, Toilet and Other Soaps.. Nabu Press.
MLA-viite (8. p.)Hurst, George Henry. Soaps: A Practical Manual of the Manufacture of Domestic, Toilet and Other Soaps.. Nabu Press.
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