(1982). <A > ecologia. Dom Quixote.
Lua i Stíl Chicago (17ú heag.)<A > Ecologia. Dom Quixote, 1982.
Lua MLA (8ú heag.)<A > Ecologia. Dom Quixote, 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
Lua APA (7ú heag.)