Não informado. (1997). Plant Ecology. Kluwer Academic Publishers.
Lua i Stíl Chicago (17ú heag.)Não informado. Plant Ecology. Dordrecht, Holanda: Kluwer Academic Publishers, 1997.
Lua MLA (8ú heag.)Não informado. Plant Ecology. Kluwer Academic Publishers, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.