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Books about Ikuhiko:
Japanese Army Fighter Aces: 1931-45 by Hata, Ikuhiko, Izawa, Yashuho, Shores, Christopher [Stackpole Books, 2012... by Hata (Apr 6, 0012)
Japanese Naval Fighter Aces: 1932-45 (Stackpole Military History Series) [Paperback]  Reprint Ed. Ikuhiko... (2013)
Japanese Army Air Force Units and Their Aces: 1931-1945 [Hardcover]  (Author) Ikuhiko Hata (2002)
Japanese Army Air Force Units and Their Aces: 1931-1945 [Hardcover]  First Ed. Ikuhiko Hata by Ikuhiko & Yasuho Izawa Hata (Jun 24, 1904)
Minzoku taiken to shite no senso: Matsumoto Kenichi taironshu : Yoshimoto Takaaki, Hata Ikuhiko, Mori Toshihiko... by Kenichi Matsumoto (1995)
Wiki information Ikuhiko:
Ikuhiko Hata is a Japanese historian and author of many books and interpretive studies in the field of Japanese history. He has been described by Edward Drea as "the doyen of Japanese military historians", and by Masahiro Yamamoto as "a leading...