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LEADER 01446cam a2200301 i 4500

001 ocm02629650;

005 20060725222600.0;

008 761211s1976 dcua f000 0 eng d;

020 c| pbk. :;

020 c| $0.65;

035 a| (OCoLC)2629650;

040 a| GPOc| GPOd| MvId| UtOrBLW;

049 a| ERE#;

074 a| 637-A;

086 0 a| I 28.27:8720;

100 1 a| Duda, John R.=| ^A451547;

245 10 a| Basic estimated capital investment and operating costs for underground bituminous coal mines developed for longwall mining :b| mines with annual production 1.3 and 2.6 million tons by longwall mining from a 48-inch coalbed /c| by John R. Duda and E. L. Hemingway : Process Evaluation Group-MMRD.;

260 a| Washington :b| U.S. Dept. of the Interior, Bureau of Mines : for sale by the Supt. of Docs., U.S. Govt. Print. Off.,c| 1976.;

300 a| [3], 23 p. :b| ill. ;c| 26 cm.;

490 1 a| Information circular - Bureau of Mines ;v| 8720;

596 a| 1;

650 0 a| Bituminous coalx| Costs.=| ^A68830;

650 0 a| Coal mines and miningz| United Statesx| Cost of operation.=| ^A256397;

700 1 a| Hemingway, E. L.e| author.=| ^A450903;

710 1 a| United States.b| Bureau of Mines.=| ^A15791;

998 a| 740400;

999 a| ASK AT REFERENCE DESKw| SUDOCc| 1i| MQ1359959d| 8/6/2007l| JDOSm| JOYNERr| Ys| Yt| MARCIVEu| 6/3/2000x| BOOKz| JFEDDOCSo| .STAFF. 0;

Basic estimated capital investment and operating costs for underground bituminous coal mines developed for longwall mining : mines with annual production 1.3 and 2.6 million tons by longwall mining from a 48-inch coalbed / by John R. Duda and E. L. Hemingway : Process Evaluation Group-MMRD.

Author/creator	Duda, John R.
Other author	Hemingway, E. L. author.
Other author	United States. Bureau of Mines.
Format	Book
Publication Info	Washington : U.S. Dept. of the Interior, Bureau of Mines : for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1976.
Description	[3], 23 p. : ill. ; 26 cm.
Subjects	Bituminous coal--Costs. Coal mines and mining--United States. --Cost of operation.

Series	Information circular - Bureau of Mines ; 8720 United States. Bureau of Mines. Information circular - Bureau of Mines ; 8720. UNAUTHORIZED
GPO item number	637-A
Govt. docs number	I 28.27:8720

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Basic estimated capital investment and operating costs for underground bituminous coal mines developed for longwall mining : mines with annual production 1.3 and 2.6 million tons by longwall mining from a 48-inch coalbed / by John R. Duda and E. L. Hemingway : Process Evaluation Group-MMRD.

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