Heinkel HD 25 (Italian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Heinkel HD 25" in Italian language version.

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Mikesh e Abe 1990, p. 63. (EN) Robert C. Mikesh, Shorzoe Abe, Japanese Aircraft 1910-1941, Annapolis, Naval Institute Press, 1990, ISBN 1-55750-563-2.
Mikesh e Abe 1990, p. 62. (EN) Robert C. Mikesh, Shorzoe Abe, Japanese Aircraft 1910-1941, Annapolis, Naval Institute Press, 1990, ISBN 1-55750-563-2.