Kirk, R. (1977). Academic freedom: An essay in definition. Greenwood Press.
芝加哥风格引文Kirk, Russell. Academic Freedom: An Essay in Definition. Westport, Conn.: Greenwood Press, 1977.
MLA引文Kirk, Russell. Academic Freedom: An Essay in Definition. Greenwood Press, 1977.
警告：这些引文格式不一定是100％准确.