000 | 00241nam a2200073 4500 | ||
---|---|---|---|
080 |
_a _b |
||
245 | _aIS: 2720-PART 25-1982 Methods of test for soils part xxv: Determination of silica sesquioxide ratio | ||
100 | _aBUREAU OF INDIAN STANDARDS | ||
260 |
_aNEW DELHI _bBIS _c1983 |
||
300 | _a7p | ||
999 |
_c36264 _d36264 |