Empire of the Air : Aviation and the American Ascendancy
Echoes among the stars : a short history of the U.S. space program
Rival rails : the race to build America's greatest transcontinental railroad
Rival rails : the race to build America's greatest transcontinental railroad
The world beyond the windshield : roads and landscapes in the United States and Europe
The garage : automobility and building innovation in America's early auto age
The H.L. Hunley submarine : history and mystery from the Civil War
Railroads and American economic growth : essays in econometric
Out of steam : dieselization and American railroads, 1920 - 1960
A dream of wings : Americans and the airplane, 1875 - 1905