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"Coal mines and mining" » "Coal eines and mining" (Expand Search)
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"Coal mines and mining" » "Coal eines and mining" (Expand Search)
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1by Jaros, Jerzy
Published 1973Kraków : Państwowe Wydawn. Naukowe [Oddz. w Krakowie] 1973.269 p. : ill. ; 24 cm.Subjects: “...Coal mines and mining Poland History....”
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2by Burkiewicz, Maria
Published 1975Wrocław : Zakład Narodowy im. Ossolińskich, 1975.113 p. ; 24 cm.Subjects: “...Coal mines and mining Poland Labor productivity....”