Brawner, C.O.
Stability in coal mining; proccedings of the First International Symposium on Stability in Coal Mining, Vancouver, British Columbia, Canada, 1978 - San Francisco, CA Miller Freeman Publications 1979 - 496 p. ilus.
CARBON
ESTABILIDAD DE TALUDES
MECANICA DE SUELOS
MINAS DE CARBON
SIMPOSIUM
624.131.537:622.33/B81
Stability in coal mining; proccedings of the First International Symposium on Stability in Coal Mining, Vancouver, British Columbia, Canada, 1978 - San Francisco, CA Miller Freeman Publications 1979 - 496 p. ilus.
CARBON
ESTABILIDAD DE TALUDES
MECANICA DE SUELOS
MINAS DE CARBON
SIMPOSIUM
624.131.537:622.33/B81