Olafson, F. A. (1998). Heidegger and the ground of ethics: A study of Mitsein. Cambridge Univ. Press.
Lua i Stíl Chicago (17ú heag.)Olafson, Frederick A. Heidegger and the Ground of Ethics: A Study of Mitsein. Cambridge: Cambridge Univ. Press, 1998.
Lua MLA (8ú heag.)Olafson, Frederick A. Heidegger and the Ground of Ethics: A Study of Mitsein. Cambridge Univ. Press, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.