MORTON, J. (1986). Conservation biology/Morton John. Sinauer Associates.
Lua i Stíl Chicago (17ú heag.)MORTON, John. Conservation Biology/Morton John. Sinauer Associates, 1986.
Lua MLA (8ú heag.)MORTON, John. Conservation Biology/Morton John. Sinauer Associates, 1986.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.