Author : Willard Eugene Hotchkiss
Publisher :
Page : 876 pages
File Size : 41,96 MB
Release : 1939
Category : Bituminous coal
ISBN :
[PDF] Mechanization Employement And Output Per Man In Bituminous Coal Mining eBook
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Mechanization, Employment, and Man Output Per Man in Bituminous-coal Mining
Author : United States. Work Projects Administration
Publisher :
Page : 492 pages
File Size : 44,8 MB
Release : 1939
Category :
ISBN :
Mechanization, Employment, and Output Per Man in Bituminous-coal Mining
Author : Willard Eugene Hotchkiss
Publisher :
Page : 441 pages
File Size : 33,11 MB
Release : 1939
Category : Bituminous coal
ISBN :
Mechanization, Employment, and Output Per Man in Bituminous-coal Mining
Author :
Publisher :
Page : pages
File Size : 25,16 MB
Release : 1937
Category : Bituminous coal
ISBN :
Mechanization, Employment, and Man Output Per Man in Bituminous-coal Mining
Author : United States. Work Projects Administration
Publisher :
Page : 441 pages
File Size : 48,53 MB
Release : 1939
Category :
ISBN :
Mechanization, Employment, and Output Per Man in Bituminous-coal Mining
Author : Willard Eugene Hotchkiss
Publisher :
Page : 0 pages
File Size : 21,82 MB
Release : 1939
Category : Bituminous coal industry
ISBN :
MECHANIZATION, EMPLOYMENT, AND OUTPUT PER MAN IN BITUMINOUS-COAL MINING.
Author :
Publisher :
Page : pages
File Size : 11,73 MB
Release : 1940
Category :
ISBN :
Productivity and Unit Labor Cost in the Bituminous Coal Mining Industry, 1935-1947
Author : United States. Bureau of Labor Statistics
Publisher :
Page : 10 pages
File Size : 43,18 MB
Release : 1948
Category : Coal mines and mining
ISBN :
Mechanization Employement and Output Per Man in Bituminous- Coal Mining
Author : Williard E. Hotchkiss
Publisher :
Page : pages
File Size : 29,7 MB
Release : 1939
Category :
ISBN :
Technological Change and Productivity in the Bituminous Coal Industry, 1920-60
Author : United States. Bureau of Labor Statistics
Publisher :
Page : 152 pages
File Size : 25,94 MB
Release : 1961
Category : Bituminous coal
ISBN :