Martin Ceadel. Pacifism in Britain, 1914-1945: The Defining of a Faith. Oxford: Clarendon Press, 1980.
Martin Ceadel. Semi-Detached Idealists: The British Peace Movement and International Relations, 1854-1945. Oxford: Oxford University Press, 2000.
Martin Ceadel. The Origins of War Prevention: The British Peace Movement and International Relations, 1730-1854. Oxford: Oxford University Press, 1996.
Martin Ceadel. Thinking about Peace and War. Oxford: Oxford University Press, 1987.
Inis L. Claude, Jr. Swords into Ploughshares: The Problems and Progress of International Organization. 1971.
Michael W. Doyle. Ways of War and Peace: Realism, Liberalism, and Socialism. W.W. Norton, 1997.
Sir Harry Hinsley. Power and the Pursuit of Peace. Cambridge: Cambridge University Press, 1962.
Andrew Hurrell. On Global Order. Oxford: Oxford University Press, 2008.
"Pennsylvania, A History of the Commonwealth," esp. pg. 109, edited by Randall M. Miller and William Pencak, The Pennsylvania State University Press, 2002.
Prefaces to Peace: a Symposium [i.e. anthology], Consisting of [works by] Wendell L. Willkie, Herbert Hoover and Hugh Gibson, Henry A. Wallace, [and] Sumner Welles. "Cooperatively published by Simon and Schuster; Doubleday, Doran, and Co.; Reynal & Hitchcock; [and] Columbia University Press", [194-]. xii, 437 p.