Allen, E. T. (2023). The Western Hemlock. Government Printing Office, Washington.
Lua i Stíl Chicago (17ú heag.)Allen, Edward T. The Western Hemlock. Government Printing Office, Washington, 2023.
Lua MLA (9ú heag.)Allen, Edward T. The Western Hemlock. Government Printing Office, Washington, 2023.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.