Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Bituminous coal fields of Pennsylvania
Part I 241 p 1928: General information on Coal, G. H. ASHLEY; Part II 511 p bound separately 1932: Detailed Description of Coal Fields, J. D. SISLER; Part III 268 p 1928: Coal Resources, J. F. REESE and J. D. SISLER.
Bituminous coal fields of Pennsylvania
Part I 241 p 1928: General information on Coal, G. H. ASHLEY; Part II 511 p bound separately 1932: Detailed Description of Coal Fields, J. D. SISLER; Part III 268 p 1928: Coal Resources, J. F. REESE and J. D. SISLER.
Bituminous coal fields of Pennsylvania
Penn Geol Survey -- Bul
1932
Aufsatz (Zeitschrift)
Englisch
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Fire fighting facilities at four Pennsylvania bituminous-coal mines
| Engineering Index Backfile | 1949
Some coal-mine safety organizations in Pennsylvania bituminous field
| Engineering Index Backfile | 1931
Anthracite and bituminous coal industry of Pennsylvania in 1933
| Engineering Index Backfile | 1934
Failure of concrete shaft linings at Pennsylvania bituminous coal-mines
| Engineering Index Backfile | 1926
Analyses of Pennsylvania bituminous coals
| Engineering Index Backfile | 1942