Weir, T. E. (1974). Botany: An introduction to plant biology (5ª ed.). John Wiley and Sons.
Lua i Stíl Chicago (17ú heag.)Weir, T. Elliot. Botany: An Introduction to Plant Biology. 5ª ed. John Wiley and Sons, 1974.
Lua MLA (9ú heag.)Weir, T. Elliot. Botany: An Introduction to Plant Biology. 5ª ed. John Wiley and Sons, 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.