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1Published 1930Subjects: “...Coal United States....”
Conference Proceeding Book -
2Published 1976Subjects: “...Coal United States Congresses....”
Conference Proceeding Book -
3Published 1988Subjects: “...Coal United States Congresses....”
Government Document Conference Proceeding Book -
4by Pell, JerrySubjects: “...Coal United States Congresses....”
Published 1982
Government Document Conference Proceeding Book -
5Published 1983Subjects: “...Coal United States Congresses....”
Conference Proceeding Book -
6Published 1989Subjects: “...Coal United States Guidebooks....”
Conference Proceeding Book -
7Published 1972Subjects: “...Coal United States Congresses....”
Conference Proceeding Book -
8Published 1976Subjects: “...Coal United States....”
Government Document Conference Proceeding Book -
9Illinois coal : proceedings of the fourth annual Illinois energy conference, September 16-17, 1976 /Published 1976Subjects: “...Coal United States Congresses....”
Conference Proceeding Book -
10Published 1990Subjects: “...Coal United States Congresses....”
Government Document Conference Proceeding Book