Estes, S. (1986). Called to die: The story of American linguist chet bitterman, slain by terrorists. Grand Rapids.
芝加哥风格引文Estes, Steve. Called to Die: The Story of American Linguist Chet Bitterman, Slain by Terrorists. Michigan: Grand Rapids, 1986.
MLA引文Estes, Steve. Called to Die: The Story of American Linguist Chet Bitterman, Slain by Terrorists. Grand Rapids, 1986.
警告：这些引文格式不一定是100％准确.