XP-13 (航空機) (Japanese Wikipedia)

Analysis of information sources in references of the Wikipedia article "XP-13 (航空機)" in Japanese language version.

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1images-amazon.com

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images-amazon.com

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"The Complete Book of Fighters" cover Editors: William Green & Gordon Swanborough (Barnes & Noble Books New York, 1998, ISBN 0760709041), 608 pp.