?
1
Capitalist collective action
competition, cooperation, and conflict in the coal industry
Studies in Marxism and social theory
Exemplar:
Zentrale:E02 a swl 772 7ga/658
?
2
Coal in America
an encyclopedia of reserves, production, and use
Exemplar:
Zentrale:E02 a swl 772 7ga/37
?
4
Coal resources, characteristics and ownership in the U.S.A.:
Exemplar:
Zentrale:E02 a swl 772 7ga/22
1-4