S. D. Woodruff

Collection, chemical analysis, and evaluation of coal samples in 1975

G. H. Wood, V. E. Swanson, J. Hatch, 1976 .

CHAPTER 1 – STRIP MINING (OPEN-CAST MINING) OF COAL

Seth D. Woodruff, S. D. Woodruff, 1966 .

ROCK MECHANICS OF BLOCK CAVING OPERATIONS

S. D. Woodruff, 1962 .

CHAPTER 3 – THE STABILITY OF PIT SLOPES

S. D. Woodruff, 1966 .