Hoek, E.
Underground excavations in rock - London Institute of Mining & Metallurgy 1980 - 527p. : ill., photos, tables Index included
0900488549
MINING
622.23 / H6
Underground excavations in rock - London Institute of Mining & Metallurgy 1980 - 527p. : ill., photos, tables Index included
0900488549
MINING
622.23 / H6