Cassirer, E., & Howe, C. S. (1961). The logic of the humanities. Yale University Press.
Lua i Stíl Chicago (17ú heag.)Cassirer, Ernst, agus Clarence Smith Howe. The Logic of the Humanities. New Haven: Yale University Press, 1961.
Lua MLA (9ú heag.)Cassirer, Ernst, agus Clarence Smith Howe. The Logic of the Humanities. Yale University Press, 1961.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.