Clayton, N. (1997). Young living (Seventh edition.). Glencoe/McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Clayton, Nanalee. Young Living. Seventh edition. New York: Glencoe/McGraw-Hill, 1997.
Lua MLA (8ú heag.)Clayton, Nanalee. Young Living. Seventh edition. Glencoe/McGraw-Hill, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.