APA Style
Mackesy, Piers, Treece, Henry. ().
The Crusades .
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Chicago Style
Mackesy, Piers, Treece, Henry.
The Crusades.
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MLA Style
Mackesy, Piers, Treece, Henry.
The Crusades.
:
,
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.
Turabian Style
Mackesy, Piers, Treece, Henry.
The Crusades.
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,
.
.