Gabriel, Richard A. Empires at war : a chronological encyclopedia / Richard A. Gabriel. - Westport, Conn. : Greenwood Press, 2005. - 3 v. (xx, 1136 p.) : ISBN: 0313332150 (set : alk. paper) Subjects--Topical Terms: Military history, Ancient.--- Dewey Class. No.: 355.009303 / Em