A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Methods and costs of dredging auriferous gravels at Lancha Plana, Amador county, Calif.
Practice of Lancha Plana Gold Dredging Co, operating near Mokelumne River 12 mi west of San Adreas, Calif.
Methods and costs of dredging auriferous gravels at Lancha Plana, Amador county, Calif.
Practice of Lancha Plana Gold Dredging Co, operating near Mokelumne River 12 mi west of San Adreas, Calif.
Methods and costs of dredging auriferous gravels at Lancha Plana, Amador county, Calif.
U S Bur Mines -- Information Cir
Patmon, C.G. (author)
1932
16 pages
Supp plates
Report
English
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