Nahin. Time Travel. Johns Hopkins University Press.
芝加哥风格引文Nahin. Time Travel. Johns Hopkins University Press.
MLA引文Nahin. Time Travel. Johns Hopkins University Press.
警告：这些引文格式不一定是100％准确.
APA引文
Nahin. Time Travel. Johns Hopkins University Press.
芝加哥风格引文Nahin. Time Travel. Johns Hopkins University Press.
MLA引文Nahin. Time Travel. Johns Hopkins University Press.