Nelson, B. (1957). Freud and the 20th century. Meridian.
Lua i Stíl Chicago (17ú heag.)Nelson, Benjamin. Freud and the 20th Century. Cleveland: Meridian, 1957.
Lua MLA (9ú heag.)Nelson, Benjamin. Freud and the 20th Century. Meridian, 1957.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.