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APA Citation Edition CitationGurstelle, W. (2004). The art of the catapult: Build greek ballistae, roman onagers, english trebuchets and more ancient artillery. Chicago Review Press.
Chicago Citation Edition CitationGurstelle, William. The Art of the Catapult: Build Greek Ballistae, Roman Onagers, English Trebuchets and More Ancient Artillery. Chicago: Chicago Review Press, 2004.
MLA Citation Edition CitationGurstelle, William. The Art of the Catapult: Build Greek Ballistae, Roman Onagers, English Trebuchets and More Ancient Artillery. Chicago Review Press, 2004.