Allaby, M. (1989). Green facts. Reed international books.
Lua i Stíl Chicago (17ú heag.)Allaby, Michael. Green Facts. London: Reed international books, 1989.
Lua MLA (9ú heag.)Allaby, Michael. Green Facts. Reed international books, 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.