APA-referens (7:e uppl.)

John, R. S. (2011). The 8 Traits successful people have in common. Embassy book.

Chicago-referens (17:e uppl.)

John, Richard St. The 8 Traits Successful People Have in Common. Mumbai: Embassy book, 2011.

MLA-referens (9:e uppl.)

John, Richard St. The 8 Traits Successful People Have in Common. Embassy book, 2011.