Não informado. (1926). Annual survey of american chemistry. National Research Council, Division of Chemistry and Chemical Technology.
Lua i Stíl Chicago (17ú heag.)Não informado. Annual Survey of American Chemistry. New York: National Research Council, Division of Chemistry and Chemical Technology, 1926.
Lua MLA (8ú heag.)Não informado. Annual Survey of American Chemistry. National Research Council, Division of Chemistry and Chemical Technology, 1926.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.