HARTMANN, F. H. (1968). The relations of nations.-- Ed.3. The Macmillan.
芝加哥风格引文HARTMANN, Frederick H. The Relations of Nations.-- Ed.3. New York: The Macmillan, 1968.
MLA引文HARTMANN, Frederick H. The Relations of Nations.-- Ed.3. The Macmillan, 1968.
警告：这些引文格式不一定是100％准确.