Armbruster, K. Nature writing: Karla Armbruster. Keywords for environmental studies.([2016]).
Lua i Stíl Chicago (17ú heag.)Armbruster, Karla. "Nature Writing: Karla Armbruster." Keywords for Environmental Studies.([2016]) .
Lua MLA (8ú heag.)Armbruster, Karla. "Nature Writing: Karla Armbruster." Keywords for Environmental Studies.([2016]), .
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.