Richardson, J. L. (1994). Crisis Diplomacy: The great powers since the mid-nineteenth century. University Press.
Chicago Style (17th ed.) ZitazioaRichardson, James L. Crisis Diplomacy: The Great Powers Since the Mid-nineteenth Century. Cambridge: University Press, 1994.
MLA (9th ed.) ZitazioaRichardson, James L. Crisis Diplomacy: The Great Powers Since the Mid-nineteenth Century. University Press, 1994.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.