Jacobs, M. (1992). Sigmund Freud. Sage.
Lua i Stíl Chicago (17ú heag.)Jacobs, Michael. Sigmund Freud. London: Sage, 1992.
Lua MLA (9ú heag.)Jacobs, Michael. Sigmund Freud. Sage, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.