Encyclopedia of American Business History and BiographyThe Airline Industry
Reference TL 509 E54 1992
The Automobile Industry, 1896-1920
Reference HD9710 U52 A815 1990
Banking and Finance to 1913
Reference HG2461 B33 1990
Iron and Steel in the Nineteenth Century
Reference HD9515 I76 1989
Railroads in the Nineteenth Century
Reference HE2751 R1433 1988
Railroads in the Age of Regulation, 1900-1980
Reference HE2751 R143 1988