APA-referens (7:e uppl.)
Jefferson, C. E. (1903). Things fundamental: A course of thirteen discourses in modern apologetics. Thomas Y. Crowell & Company Publishers.
Chicago-referens (17:e uppl.)
Jefferson, Charles Edward. Things Fundamental: A Course of Thirteen Discourses in Modern Apologetics. New York: Thomas Y. Crowell & Company Publishers, 1903.
MLA-referens (9:e uppl.)
Jefferson, Charles Edward. Things Fundamental: A Course of Thirteen Discourses in Modern Apologetics. Thomas Y. Crowell & Company Publishers, 1903.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.