TY  - RPRT
TI  - Standard Reference Materials Methods of analysis of NBS clay standards
AU  - Bell, R K
AU  - Menis, O
AU  - Shultz, J I
PY  - 1972
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NBS SP 260-37
DO  - 10.6028/NBS.SP.260-37
ER  -