Gregg. Building the Nation. University of Nebraska Press.
芝加哥风格引文Gregg. Building the Nation. University of Nebraska Press.
MLA引文Gregg. Building the Nation. University of Nebraska Press.
警告：这些引文格式不一定是100％准确.
APA引文
Gregg. Building the Nation. University of Nebraska Press.
芝加哥风格引文Gregg. Building the Nation. University of Nebraska Press.
MLA引文Gregg. Building the Nation. University of Nebraska Press.