TY  - BOOK
AU  - Bureau of Indian Standards[BIS]
TI  - IS:2720-(Pt.7)-1980. Indian standard methods of test for soils. Pt.7 :  determination of water content - dry density relation using light compaction (Second revision)
U1  - IS Code 
PY  - 1997///
CY  - New Delhi
PB  - Bureau of Indian Standards
ER  -