KIRK, O. Encyclopedia of chemical technology: Vitamins to zone refining. Volume XXIV. John Wiley & Sons Inc.
Lua i Stíl Chicago (17ú heag.)KIRK, Othmer. Encyclopedia of Chemical Technology: Vitamins to Zone Refining. Volume XXIV. John Wiley & Sons Inc.
Lua MLA (8ú heag.)KIRK, Othmer. Encyclopedia of Chemical Technology: Vitamins to Zone Refining. Volume XXIV. John Wiley & Sons Inc.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.