ALLEN, O. E. (1978). Pruning And Grafting Oliver E. Allen And Time-life Books. Time-Life Book.
Lua i Stíl Chicago (17ú heag.)ALLEN, Oliver E. Pruning And Grafting Oliver E. Allen And Time-life Books. Time-Life Book, 1978.
Lua MLA (8ú heag.)ALLEN, Oliver E. Pruning And Grafting Oliver E. Allen And Time-life Books. Time-Life Book, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.