PWS-6 (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "PWS-6" in English language version.

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  • Glass, Andrzej (1977). Polskie konstrukcje lotnicze 1893–1939 [Polish aviation designs 1893–1939] (in Polish). Warsaw: WKiŁ. pp. 182–183. OCLC 213774512.