Hoffman, Ross J.S.
Medieval history
Littlefield, Adams, 1958
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Caenegem, R. C. van
Guide to the sources of medieval history/by R.C. Van Caenegem, F.L. Ganshop
North-Holland Publishing, 1978
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Hollister, C. Warren
Medieval Europe : a short history
John Wiley & Sons, 1968
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McGarry, Daniel D.
Outline of medieval history
Littlefield, Adams, 1968
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Rickard, J.A.
Ancient, medieval & modern history
Barnes & Noble, 1952
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