Sampling, materials handling, processing, and packaging of NBS sulfur in coal standard reference materials / T.E. Gills and R.W. Seward with R.J. Collins and W.C. Webster (NBS special publication ; 260-84) (Standard reference materials)
Sampling, materials handling, processing, and packaging of NBS sulfur in coal standard reference materials / T.E. Gills and R.W. Seward with R.J. Collins and W.C. Webster
(NBS special publication ; 260-84) (Standard reference materials)