Walls, L. D. Cosmos: Laura Dassow Walls. Keywords for environmental studies.([2016]).
Lua i Stíl Chicago (17ú heag.)Walls, Laura Dassow. "Cosmos: Laura Dassow Walls." Keywords for Environmental Studies.([2016]) .
Lua MLA (8ú heag.)Walls, Laura Dassow. "Cosmos: Laura Dassow Walls." Keywords for Environmental Studies.([2016]), .
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.