CROCKETT, J. U. Evergreens: The Time-life encyclopedia of gardening. Time-life Books.
Lua i Stíl Chicago (17ú heag.)CROCKETT, James Underwwod. Evergreens: The Time-life Encyclopedia of Gardening. Time-life Books.
Lua MLA (8ú heag.)CROCKETT, James Underwwod. Evergreens: The Time-life Encyclopedia of Gardening. Time-life Books.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.