One or more of the preceding sentences incorporates text from a publication now in the public domain: Chisholm, Hugh, ed. (1911). "Soffioni". Encyclopædia Britannica (11th ed.). Cambridge University Press. /wiki/Public_domain
"Borax and Boric Acid.—Production in Tuscany". Year Book of the American Pharmaceutical Association. 1920. pp. 348–349. https://books.google.com/books?id=pz8fAQAAIAAJ&pg=PA348
One or more of the preceding sentences incorporates text from a publication now in the public domain: Chisholm, Hugh, ed. (1911). "Soffioni". Encyclopædia Britannica (11th ed.). Cambridge University Press. /wiki/Public_domain
One or more of the preceding sentences incorporates text from a publication now in the public domain: Chisholm, Hugh, ed. (1911). "Soffioni". Encyclopædia Britannica (11th ed.). Cambridge University Press. /wiki/Public_domain