Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
An illustrated account of the development and success of this industry, showing types of dredges used. (1600 w.) (No. 84603)
An illustrated account of the development and success of this industry, showing types of dredges used. (1600 w.) (No. 84603)
Placer dredging in California
Min Wld
Holmes, George L. (Autor:in)
1907
Aufsatz (Zeitschrift)
Englisch
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| Engineering Index Backfile | 1909
Extending scope of placer dredging
Engineering Index Backfile | 1941
Dredging [and] Placer Mining Conference : Proceedings
| TIBKAT | 1983
Dredging placer gravels at Breckenridge, Colorado
| Engineering Index Backfile | 1908
Placer mining dredging still one of California's leading industries
| Engineering Index Backfile | 1940