IS:5313-1980. Indian standard guide core drilling observations.
Indian Standards Institution[ISI]
IS:5313-1980. Indian standard guide core drilling observations. - New Delhi Indian Standards Institution 1980 - 9p.
ENG
IS Code / I.S.I
IS:5313-1980. Indian standard guide core drilling observations. - New Delhi Indian Standards Institution 1980 - 9p.
ENG
IS Code / I.S.I