1996. Pomeroy, Earl. The American Far West in the Twentieth Century. New Haven, CT: Yale University Press, 2009. Turner, Frederick Jackson. Rereading Frederick
mountains high, so clear and green Are home to me, though I may stray A haven calm serene 第三節: Our little sister islands are, Those gems, the lovely Grenadines
ISBN 0-674-03189-X. Weart, Spencer R. Never at war : why democracies will not fight one another. New Haven: Yale University Press. 1998. ISBN 0-300-08298-3. AIP list
Frontier, Harper Collins, New Delhi, 2012, and Yale University Press, New Haven, 2015. China's India War: Collision Course on the Roof of the World, Oxford