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INDIAN STANDARD SUBSURFACE EXPLORATION BY PITS, TRENCHES, DRIFTS AND SHAFTS-CODE OF PRACTICE. IS 445

By: Material type: TextLanguage:   ENGLISH Publication details: NEW DELHI; BUREAU OF INDIAN STANDARDS.Edition: 2nd rev. ed; 2009Description: 9Subject(s): DDC classification:
  • 624
  • BUR
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