Callahan, R. J. (2009). Work and faith in the Kentucky coal fields: Subject to dust. Indiana University Press.
芝加哥风格引文Callahan, Richard J. Work and Faith in the Kentucky Coal Fields: Subject to Dust. Bloomington: Indiana University Press, 2009.
MLA引文Callahan, Richard J. Work and Faith in the Kentucky Coal Fields: Subject to Dust. Indiana University Press, 2009.
警告：这些引文格式不一定是100％准确.