Butterworth. Baseball and Rhetorics of Purity. The University of Alabama Press.
Čikaški stil citiranja (17. izdanje)Butterworth. Baseball and Rhetorics of Purity. The University of Alabama Press.
MLA način citiranja (9. izdanje)Butterworth. Baseball and Rhetorics of Purity. The University of Alabama Press.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.