2Edward S. Corwin, "The ' Higher Law' Background of American Constitutional Law", Harvard Law Review, Vol. 42, No. 2, 1928, p. 152.
3Alfred H. Kelly, Winfred A. Harbison and Herman Belz, The American Constitution: Its Origins and Development, Vol. I , New York: W. W. Norton & Company, Inc. , 1991, p. 8.
