Nathan, P. (1955). Retreat from reason: An essay on the intellectual life of our time. Heinemann.
Lua i Stíl Chicago (17ú heag.)Nathan, Peter. Retreat from Reason: An Essay on the Intellectual Life of Our Time. Melbourne: Heinemann, 1955.
Lua MLA (8ú heag.)Nathan, Peter. Retreat from Reason: An Essay on the Intellectual Life of Our Time. Heinemann, 1955.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.