Richardson, J. L. (1994). Crisis Diplomacy: The great powers since the mid-nineteenth century. University Press.
Dyfyniad Arddull ChicagoRichardson, James L. Crisis Diplomacy: The Great Powers Since the Mid-nineteenth Century. Cambridge: University Press, 1994.
Dyfyniad MLARichardson, James L. Crisis Diplomacy: The Great Powers Since the Mid-nineteenth Century. University Press, 1994.
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