Crockett, J. U. (1977). Wildflower gardening. Time-Life Books.
Lua i Stíl Chicago (17ú heag.)Crockett, James Underwood. Wildflower Gardening. Alexandria, Va: Time-Life Books, 1977.
Lua MLA (8ú heag.)Crockett, James Underwood. Wildflower Gardening. Time-Life Books, 1977.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.