United States — Territorial expansion — Audiobooks
The Winning of the West, Volume 4 Louisiana and the Northwest, 1791-1807
by Theodore Roosevelt
The Winning of the West, Volume 3 The Founding of the Trans-Alleghany Commonwealths, 1784-1790
by Theodore Roosevelt
The Winning of the West, Volume 1 From the Alleghanies to the Mississippi, 1769-1776
by Theodore Roosevelt
The Frontier in American History
by Frederick Jackson Turner
The Path of Empire: A Chronicle of the United States as a World Power
by Carl Russell Fish
The Winning of the West, Volume 2 From the Alleghanies to the Mississippi, 1777-1783
by Theodore Roosevelt
La Política de los Estados Unidos en el Continente Americano
by Raúl de Cárdenas y Echarte