APA-referens (7:e uppl.)
Urbina, M. G. (2012). Capital punishment in America: Race and the death penalty over time. LFB Scholarly Pub. LLC.
Chicago-referens (17:e uppl.)
Urbina, Martin G. Capital Punishment in America: Race and the Death Penalty over Time. El Paso: LFB Scholarly Pub. LLC, 2012.
MLA-referens (9:e uppl.)
Urbina, Martin G. Capital Punishment in America: Race and the Death Penalty over Time. LFB Scholarly Pub. LLC, 2012.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.