Greenberg, C., & Greenberg, C. (1995). Perceptions and judgments, 1939 - 1944 (5. paperback ed.). Univ. of Chicago Press.
Lua i Stíl Chicago (17ú heag.)Greenberg, Clement, agus Clement Greenberg. Perceptions and Judgments, 1939 - 1944. 5. paperback ed. Chicago ; London: Univ. of Chicago Press, 1995.
Lua MLA (8ú heag.)Greenberg, Clement, agus Clement Greenberg. Perceptions and Judgments, 1939 - 1944. 5. paperback ed. Univ. of Chicago Press, 1995.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.