RT Book, Whole SR Electronic A2 Derek Martin A2 Derek Martin A2 Peter Stacey T1 Guidelines for Open Pit Slope Design in Weak Rocks YR 2018 SN 978-1-4863-0349-6 DO 10.1071/9781486303489 OP 415 UL https://ebooks.publish.csiro.au/content/9781486303489/9781486303489