APA-referens (7:e uppl.)

Douglass, H. E. (2006). Never been this late before. Amazing Facts.

Chicago-referens (17:e uppl.)

Douglass, Herbert Edgar. Never Been This Late Before. Roseville, CA: Amazing Facts, 2006.

MLA-referens (9:e uppl.)

Douglass, Herbert Edgar. Never Been This Late Before. Amazing Facts, 2006.