1.
Rock Mechanics and the Design of Structures in Rock
by Obert, Leonard, Durall, Wil...
ISBN: 9780608133645
List Price: $200.00
OUT OF STOCK
See Availability on Amazon2.
Rock Mechanics and the Design of Structures in Rock
by Obert, Leonard, Duvall, W. L.
ISBN: 9780471652359
List Price: $76.95
3.
Micro-Seismic Method of Determining the Stability of Underground Openings
by Obert, Leonard, Duvall, Wil...
ISBN: 9780598905598
List Price: $30.00