Speech of Mr. Clayton of Delaware in the Senate of the United States, Feb. 10, 1831 on the resolution of Mr. Grundy to prohibit the Select Committee on the Management of the Post Office Department from investigating the principles upon which the removals have been made in that department - Clayton, John Middleton (Printed at the office of the National Journal, 1831)
OCLC, 17770725. - Reproduction of original from Harvard Law School Library