Behnke, E. The Mechanism of the Human Voice.
Lua i Stíl Chicago (17ú heag.)Behnke, Emil. The Mechanism of the Human Voice.
Lua MLA (9ú heag.)Behnke, Emil. The Mechanism of the Human Voice.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.