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Record Nr. |
UNINA9910696890103321 |
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Autore |
McCulloch C. M (Charles M.) |
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Titolo |
Geologic factors causing roof instability and methane emission problems [[electronic resource] ] : the Lower Kittaning coalbed, Cambria County, Pa. / / by C.M. McCulloch and Maurice Deul |
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Pubbl/distr/stampa |
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[Washington, D.C.?] : , : U.S. Dept. of the Interior, Bureau of Mines, , [1973] |
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Descrizione fisica |
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ii, 25 pages : digital, PDF file |
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Collana |
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Report of investigations ; ; 7769 |
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Altri autori (Persone) |
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Soggetti |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Title from title screen (viewed on July 18, 2008). |
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