Information concerning the railroads, labor conditions, etc. (2500 w.) (No. 91087)
Transportation, costs and labor in Central Peru
Eng Min Jour
1908
Ills.
Aufsatz (Zeitschrift)
Englisch
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Wiley | 2007
|Springer Verlag | 2012
|Engineering Index Backfile | 1925
Engineering Index Backfile | 1899
MasoSine's solution eliminates labor costs
Online Contents | 2012