Solomon, R. C., & Higgins, K. M. (1993). The Age of German idealism. Routledge.
Lua i Stíl Chicago (17ú heag.)Solomon, Robert C., agus Kathleen Marie Higgins. The Age of German Idealism. London: Routledge, 1993.
Lua MLA (8ú heag.)Solomon, Robert C., agus Kathleen Marie Higgins. The Age of German Idealism. Routledge, 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.