S-533 Forel (Italian Wikipedia)

Analysis of information sources in references of the Wikipedia article "S-533 Forel" in Italian language version.

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Polmar, Noot 1991, p. 179. Norman Polmar e Jurrien Noot, Submarines of the Russian and Soviet Navies 1718-1990, Annapolis, Naval Institute Press, 1991.
Polmar, Noot 1991, p. 293. Norman Polmar e Jurrien Noot, Submarines of the Russian and Soviet Navies 1718-1990, Annapolis, Naval Institute Press, 1991.