Holt, G. (1991). Geraldene Holt's complete book of herbs. Conran Octopus.
Lua i Stíl Chicago (17ú heag.)Holt, Geraldene. Geraldene Holt's Complete Book of Herbs. London: Conran Octopus, 1991.
Lua MLA (9ú heag.)Holt, Geraldene. Geraldene Holt's Complete Book of Herbs. Conran Octopus, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.