Heller, F. H. (1952). Introduction to American constitutional law: A selection of cases and materials. Harper.
芝加哥风格引文Heller, Francis Howard. Introduction to American Constitutional Law: A Selection of Cases and Materials. New York: Harper, 1952.
MLA引文Heller, Francis Howard. Introduction to American Constitutional Law: A Selection of Cases and Materials. Harper, 1952.
警告：这些引文格式不一定是100％准确.