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1by Syvänne, IlkkaSubjects: “...Military art and science History. http://id.loc.gov/authorities/subjects/sh85085139...”
Published 2020
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2by Syvänne, Ilkka“...Rome History, Military 30 B.C.-476 A.D. http://id.loc.gov/authorities/subjects/sh85115173...”
Published 2021
Book