A protective tariff necessary--rights of labor. [electronic resource] Speech of Hon. James H. Campbell, of Penn. Delivered in the House of representatives, April 24, 1860.
Electronic text and image data. Ann Arbor, Mich. : University of Michigan, Digital Library Initiatives, 2000. Includes both TIFF files and keyword searchable text. [Making of America] This volume is made possible by a grant from the Andrew W. Mellon Foundation as part of Making of America IV: the American voice, 1850-1877.