INDIAN STANDARD DIAMOND CORE DRILLING - SITE INVESTIGATION FOR RIVER VALLEY PROJECTS-CODE OF PRACTIC
BUREAU OF INDIAN STA
INDIAN STANDARD DIAMOND CORE DRILLING - SITE INVESTIGATION FOR RIVER VALLEY PROJECTS-CODE OF PRACTIC - 1st ed. 2001 - NEW DELHI BUREAU OF INDIAN STANDARDS. - 10
  DIAMOND CORE DRILLING - SITE
624 / BUR
INDIAN STANDARD DIAMOND CORE DRILLING - SITE INVESTIGATION FOR RIVER VALLEY PROJECTS-CODE OF PRACTIC - 1st ed. 2001 - NEW DELHI BUREAU OF INDIAN STANDARDS. - 10
  DIAMOND CORE DRILLING - SITE
624 / BUR