Wills, G. (1994). Certain trumpets: The call of leaders. Simon & Schuster.
芝加哥风格引文Wills, Garry. Certain Trumpets: The Call of Leaders. New York: Simon & Schuster, 1994.
MLA引文Wills, Garry. Certain Trumpets: The Call of Leaders. Simon & Schuster, 1994.
警告：这些引文格式不一定是100％准确.