Brunet, R. (2011). Sustainable geography. ISTE.
Lua i Stíl Chicago (17ú heag.)Brunet, Roger. Sustainable Geography. London: ISTE, 2011.
Lua MLA (8ú heag.)Brunet, Roger. Sustainable Geography. ISTE, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.