Cousens, R. Dispersal in plants. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Cousens, Roger. Dispersal in Plants. Oxford University Press.
Lua MLA (8ú heag.)Cousens, Roger. Dispersal in Plants. Oxford University Press.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.