TY  - RPRT
TI  - C-13 NMR characterization of humic materials isolated by an MIBK partitioning procedure
AU  - K. Thorn
AU  - J. Rice
AU  - R. Wershaw
AU  - P. MacCarthy
PY  - 1987
DO  - 10.1016/0048-9697(87)90499-2
UR  - https://pubs.usgs.gov/publication/70009895
ID  - 70009895
ER  -