Ehrlich, P. The process of evolution.
Lua i Stíl Chicago (17ú heag.)Ehrlich, P.R. The Process of Evolution.
Lua MLA (9ú heag.)Ehrlich, P.R. The Process of Evolution.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
Lua APA (7ú heag.)