Não informado. (1938). Soap and sanitary chemicals. Macnair - Dorland.
Lua i Stíl Chicago (17ú heag.)Não informado. Soap and Sanitary Chemicals. New York: Macnair - Dorland, 1938.
Lua MLA (8ú heag.)Não informado. Soap and Sanitary Chemicals. Macnair - Dorland, 1938.
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