Given, D. R. (1994). Principles and practice of plant conservation. Timber Press.
Lua i Stíl Chicago (17ú heag.)Given, David R. Principles and Practice of Plant Conservation. Portland: Timber Press, 1994.
Lua MLA (9ú heag.)Given, David R. Principles and Practice of Plant Conservation. Timber Press, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.