Yewdale, M. S. (1939). The origin of the human race. Priv. print. [American book-Stratford press, inc.].
Lua i Stíl Chicago (17ú heag.)Yewdale, Merton Stark. The Origin of the Human Race. [New York]: Priv. print. [American book-Stratford press, inc.], 1939.
Lua MLA (8ú heag.)Yewdale, Merton Stark. The Origin of the Human Race. Priv. print. [American book-Stratford press, inc.], 1939.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.