Building reservoirs over coal mines

Engineering Index Backfile | 1930

Building Yankee Mines Tramway

Martin, G. | Engineering Index Backfile | 1931

The building of mines and metallurgy

Weil, Rene´ | Engineering Index Backfile | 1899

Building stoppings in mines with large openings

Thimons, Edward D. / Kissell, Fred N. | TIBKAT | 1975

Building programme of department of mines, Ottawa

Engineering Index Backfile | 1931