413 resultados para Salt mines and mining


Relevância:

100.00% 100.00%

Publicador:

Resumo:

"Report of the United States Bureau of Mines to the Pennsylvania State Anthracite Mine Cave Commission and review of the compressive strength of anthracite, bituminous coals and mine supports."

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Includes bibliographical references.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Also verso t.p.: 1894.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Mode of access: Internet.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Mode of access: Internet.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Mode of access: Internet.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Not issued consecutively.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

"Period of performance: September, l968- December, 1973."

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Mode of access: Internet.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

"April 1953, [site issuance date]."

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Fiscal year coverage, 1971-1975; calendar year coverage, 1976-1980.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Mode of access: Internet.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

"April 1963."