Hoek, E.
Support of underground excavations in hard rock - Rotterdam A.A. Balkema 1995 - xii, 215p. : ill., photos
9054101865
MINES & MINING
622 / H6
Support of underground excavations in hard rock - Rotterdam A.A. Balkema 1995 - xii, 215p. : ill., photos
9054101865
MINES & MINING
622 / H6