The modern techniques of rock blasting /
Langefors, V,
The modern techniques of rock blasting / V. langefors and b. kihlstrom - 3 - 438 páginas
0470992824
Voladuras (Minería)
TN279 / L338 1978
The modern techniques of rock blasting / V. langefors and b. kihlstrom - 3 - 438 páginas
0470992824
Voladuras (Minería)
TN279 / L338 1978