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ASTM D 4879 (reapproved 1996) ; ASTM D 4879 - 02 Standard guide for geotechnical mapping of large underground openings in rock
1) 1997 Annual Book of ASTM Standards. Section 4 Construction, Volume 04.08 Soil and Rock (I) 2) Annual Book Of Astm Standards 2006 Soils And Rock (i) Vol. 04.08
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