MacDowell, L. S. (2012). An environmental history of Canada. UBC Press.
Lua i Stíl Chicago (17ú heag.)MacDowell, Laurel Sefton. An Environmental History of Canada. Vancouver: UBC Press, 2012.
Lua MLA (9ú heag.)MacDowell, Laurel Sefton. An Environmental History of Canada. UBC Press, 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.