Citazione Stile APA (7a Edizione)
Johnson, D. (2008). John Ringo, king of the cowboys: His life and times from the Hoo Doo War to Tombstone (2nd ed.). University of North Texas Press.
Citazione stile Chigago Style (17a edizione)
Johnson, David. John Ringo, King of the Cowboys: His Life and Times from the Hoo Doo War to Tombstone. 2nd ed. Denton, Tex.: University of North Texas Press, 2008.
Citatione MLA (9a ed.)
Johnson, David. John Ringo, King of the Cowboys: His Life and Times from the Hoo Doo War to Tombstone. 2nd ed. University of North Texas Press, 2008.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.