APA-referens (7:e uppl.)

Voegelin, E., Hollweck, T. A., & Caringella, P. (2007). Selected correspondence, 1950 - 1984: Eric Voegelin. Translations from the German by Sandy Adler. Ed. with an introd. by Thomas A. Hollweck. Univ. of Missouri Press.

Chicago-referens (17:e uppl.)

Voegelin, Eric, Thomas A. Hollweck, och Paul Caringella. Selected Correspondence, 1950 - 1984: Eric Voegelin. Translations from the German by Sandy Adler. Ed. with an Introd. by Thomas A. Hollweck. Columbia, Mo. [u.a.]: Univ. of Missouri Press, 2007.

MLA-referens (8:e uppl.)

Voegelin, Eric, et al. Selected Correspondence, 1950 - 1984: Eric Voegelin. Translations from the German by Sandy Adler. Ed. with an Introd. by Thomas A. Hollweck. Univ. of Missouri Press, 2007.