Spruill, M. (2011). Decisions at Gettysburg: The nineteen critical decisions that defined the campaign. University of Tennessee Press.
芝加哥风格引文Spruill, Matt. Decisions at Gettysburg: The Nineteen Critical Decisions That Defined the Campaign. Knoxville: University of Tennessee Press, 2011.
MLA引文Spruill, Matt. Decisions at Gettysburg: The Nineteen Critical Decisions That Defined the Campaign. University of Tennessee Press, 2011.
警告：这些引文格式不一定是100％准确.