Loewenberg, P. (1983). Decoding the past: The psychohistorical approach. Knopf.
Lua i Stíl Chicago (17ú heag.)Loewenberg, Peter. Decoding the Past: The Psychohistorical Approach. New York: Knopf, 1983.
Lua MLA (8ú heag.)Loewenberg, Peter. Decoding the Past: The Psychohistorical Approach. Knopf, 1983.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.