Nevins, A., & Stone, I. (1962). Lincoln: A contemporary Portrait. Doubleday & Co..
Lua i Stíl Chicago (17ú heag.)Nevins, Allan, agus Irving Stone. Lincoln: A Contemporary Portrait. Garden City, NY: Doubleday & Co., 1962.
Lua MLA (8ú heag.)Nevins, Allan, agus Irving Stone. Lincoln: A Contemporary Portrait. Doubleday & Co., 1962.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.