J C Harding

DRILLING AND PREPARATION OF REUSABLE, LONG RANGE, HORIZONTAL BORE HOLES IN ROCK AND IN GOUGE. VOLUME I. STATE-OF-THE-ART ASSESSMENT

J C Harding, L A Rubin, W L Still, 1975 .

DRILLING AND PREPARATION OF REUSABLE, LONG RANGE, HORIZONTAL BORE HOLES IN ROCK AND IN GOUGE. VOLUME III. A DEVELOPMENT PLAN TO EXTEND PENETRATION CAPACITY. INCREASE ACCURACY AND REDUCE COSTS

W M Mack, N Tracy, J C Harding, 1976 .