The principles and practice of mine ventilation :
Penman, David,
The principles and practice of mine ventilation : being a treatise on modern methods of mine ventilation and Machinery, with a consideration of deep mine problems, explosions, fires, rescue and recovery work, and cognate subjects / by David Penmanand J.S. Pnman - VIII, 303 páginas
Ventilación de minas
TN301 / P45
The principles and practice of mine ventilation : being a treatise on modern methods of mine ventilation and Machinery, with a consideration of deep mine problems, explosions, fires, rescue and recovery work, and cognate subjects / by David Penmanand J.S. Pnman - VIII, 303 páginas
Ventilación de minas
TN301 / P45