Hirsch, D., & Van Haften, D. (2010). Abraham Lincoln and the structure of reason. Savas Beatie.
Čikaški stil citiranja (17. izdanje)Hirsch, David, i Dan Van Haften. Abraham Lincoln and the Structure of Reason. New York: Savas Beatie, 2010.
MLA način citiranja (9. izdanje)Hirsch, David, i Dan Van Haften. Abraham Lincoln and the Structure of Reason. Savas Beatie, 2010.
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