Shulman. Coal and Empire. Johns Hopkins University Press.
芝加哥风格引文Shulman. Coal and Empire. Johns Hopkins University Press.
MLA引文Shulman. Coal and Empire. Johns Hopkins University Press.
警告：这些引文格式不一定是100％准确.
APA引文
Shulman. Coal and Empire. Johns Hopkins University Press.
芝加哥风格引文Shulman. Coal and Empire. Johns Hopkins University Press.
MLA引文Shulman. Coal and Empire. Johns Hopkins University Press.