Freund, P. A. (1954). Constitutional law: Cases and other problems. Little, Brown.
芝加哥风格引文Freund, Paul Abraham. Constitutional Law: Cases and Other Problems. Boston: Little, Brown, 1954.
MLA引文Freund, Paul Abraham. Constitutional Law: Cases and Other Problems. Little, Brown, 1954.
警告：这些引文格式不一定是100％准确.