Lua APA (7ú heag.)
Hirsch, D., & Van Haften, D. (2010). Abraham Lincoln and the structure of reason. Savas Beatie.
Lua i Stíl Chicago (17ú heag.)
Hirsch, David, agus Dan Van Haften. Abraham Lincoln and the Structure of Reason. New York: Savas Beatie, 2010.
Lua MLA (9ú heag.)
Hirsch, David, agus Dan Van Haften. Abraham Lincoln and the Structure of Reason. Savas Beatie, 2010.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.