Changes in technology and labor requirements in the crushed-stone industry
- Författare
- United States Geoffrey A. Saeger Harry S. Kantor
- (Harry S. Kantor and Geoffrey A. Saeger., Issued also in Technology, employment, and output per man: phosphate rock, crushed stone. (National research project on reemployment opportunities and recent changes in industrial techniques.) 1938-39, Photoprinted, Bibliographical footnotes)
- Genre
- Offentligt tryck
- Språk
- Engelska
| Förlag | År | Ort | Om boken | ISBN |
|---|---|---|---|---|
| Works progress administration, National research project, in cooperation with Department of the interior, Bureau of mines | 1939 | USA, Philadelphia, Pa | xvii, 169 sidor. incl. front., ill, tables, diagrs 26 cm |