TY - BOOK AU - Usselman, Steven W. PY - 2002 DA - 2002// TI - Regulating railroad innovation: business, technology, and politics in America, 1840 - 1920 PB - Cambridge Univ. Press CY - New York, NY [u.a.] KW - Railroads KW - United States KW - History KW - Technological innovations SN - 0521806364 LA - English N1 - Steven W. Usselman ID - 341818496 ER -