Wetzel. A Duel of Nations. University of Wisconsin Press.
芝加哥风格引文Wetzel. A Duel of Nations. University of Wisconsin Press.
MLA引文Wetzel. A Duel of Nations. University of Wisconsin Press.
警告：这些引文格式不一定是100％准确.
APA引文
Wetzel. A Duel of Nations. University of Wisconsin Press.
芝加哥风格引文Wetzel. A Duel of Nations. University of Wisconsin Press.
MLA引文Wetzel. A Duel of Nations. University of Wisconsin Press.