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1
Capitalist collective action
competition, cooperation, and conflict in the coal industry
Studies in Marxism and social theory
Copies:
Zentrale:E02 a swl 772 7ga/658
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2
Coal in America
an encyclopedia of reserves, production, and use
Copies:
Zentrale:E02 a swl 772 7ga/37
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3
Coal resources, characteristics and ownership in the U.S.A.:
Copies:
Zentrale:E02 a swl 772 7ga/22