Untiedt. Cowboys, Cops, Killers, and Ghosts. University of North Texas Press.
Čikaški stil citiranja (17. izdanje)Untiedt. Cowboys, Cops, Killers, and Ghosts. University of North Texas Press.
MLA način citiranja (9. izdanje)Untiedt. Cowboys, Cops, Killers, and Ghosts. University of North Texas Press.
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