Author: Willard Eugene Hotchkiss
Publisher:
ISBN:
Category : Bituminous coal
Languages : en
Pages : 876
Book Description
Mechanization, Employment, and Output Per Man in Bituminous-coal Mining
Author: Willard Eugene Hotchkiss
Publisher:
ISBN:
Category : Bituminous coal
Languages : en
Pages : 876
Book Description
Publisher:
ISBN:
Category : Bituminous coal
Languages : en
Pages : 876
Book Description
Mechanization, Employment, and Man Output Per Man in Bituminous-coal Mining
Author: United States. Work Projects Administration
Publisher:
ISBN:
Category :
Languages : en
Pages : 492
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 492
Book Description
Production, Employment, and Productivity in the Mineral Extractive Industries, 1880-1938
Author: Vivian Eberle Spencer
Publisher:
ISBN:
Category : Economics
Languages : en
Pages : 192
Book Description
Publisher:
ISBN:
Category : Economics
Languages : en
Pages : 192
Book Description
Mechanization, Employment, and Output Per Man in Bituminous-coal Mining
Author:
Publisher:
ISBN:
Category : Bituminous coal
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category : Bituminous coal
Languages : en
Pages :
Book Description
Information Circular
Author:
Publisher:
ISBN:
Category : Mines and mineral resources
Languages : en
Pages : 1084
Book Description
Publisher:
ISBN:
Category : Mines and mineral resources
Languages : en
Pages : 1084
Book Description
Changes in Machinery and Job Requirements in Minnesota Manufacturing, 1931-36
Author: Charles Augustus Koepke
Publisher:
ISBN:
Category : Industries
Languages : en
Pages : 486
Book Description
Publisher:
ISBN:
Category : Industries
Languages : en
Pages : 486
Book Description
Statistical Abstract of the United States
Author:
Publisher:
ISBN:
Category : United States
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category : United States
Languages : en
Pages :
Book Description
Rock Drilling
Author: C. E. Nighman
Publisher:
ISBN:
Category : Labor productivity
Languages : en
Pages : 932
Book Description
Publisher:
ISBN:
Category : Labor productivity
Languages : en
Pages : 932
Book Description
Mechanization, Employment, and Output Per Man in Bituminous-coal Mining
Author: Willard Eugene Hotchkiss
Publisher:
ISBN:
Category : Bituminous coal
Languages : en
Pages : 441
Book Description
Publisher:
ISBN:
Category : Bituminous coal
Languages : en
Pages : 441
Book Description
Bulletin of the United States Bureau of Labor Statistics
Author:
Publisher:
ISBN:
Category : Labor
Languages : en
Pages : 1214
Book Description
Publisher:
ISBN:
Category : Labor
Languages : en
Pages : 1214
Book Description