Nearing, G. (1947). The lichen book: Handbook of the lichens of Northeastern United States ; 700 drawings by the author. E. Lundberg.
Lua i Stíl Chicago (17ú heag.)Nearing, G.G. The Lichen Book: Handbook of the Lichens of Northeastern United States ; 700 Drawings by the Author. Ashton, Md: E. Lundberg, 1947.
Lua MLA (9ú heag.)Nearing, G.G. The Lichen Book: Handbook of the Lichens of Northeastern United States ; 700 Drawings by the Author. E. Lundberg, 1947.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.